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Seattle Mariners Fantasy Baseball News
Lazaro Montes Continuing to Show Power at Triple-A
Seattle Mariners outfield prospect Lazaro Montes has three homers in his last five games after going on a three-game homer streak on Wednesday at Triple-A Tacoma. That brought Montes' homer total on the season to 35 between Double-A Arkansas and Tacoma. He has 87 combined RBI with 92 runs scored while hitting .251. The 21-year-old left-handed hitter is the No. 5 prospect in the Mariners system and has an elite power profile with 65-grade power. His hit tool is graded at 45, so his overall hitting and batting average could be a question mark for fantasy purposes, but his power display this season should leave fantasy managers anticipating his promotion to Seattle for an MLB debut. The Mariners could certainly use Montes' powerful bat in their lineup and he looks like a good end-of-season stash just in case he gets the call up.
Aug 17 · Source via
Prospects Seattle Mariners Lazaro MontesBryan Woo Pulled as a Precaution With Shoulder Soreness
Seattle Mariners right-hander Bryan Woo (shoulder) was pulled from Sunday's game against the division-rival Houston Astros after only 75 pitches because he was dealing with a little bit of soreness in his right shoulder, with manager Dan Wilson calling the early exit precautionary, per Shannon Drayer. Woo stayed in the contest long enough to earn his ninth win of the year, allowing two earned runs on three hits (two homers) while walking one and striking out five in six innings of work for a quality start as well. Because the Mariners don't seem too concerned about Woo's shoulder, fantasy managers should expect him to make his next start next weekend at home against the Chicago Cubs. After his quality start on Sunday evening on the road at Daikin Park in the 3-2 victory, Woo is now 9-8 in 2026 with a 4.10 ERA and 137 strikeouts in 138 1/3 innings pitched across his 24 starts. The former sixth-rounder in 2021 from Cal Poly gave up 10 earned runs in 10 innings in his final two starts in July, but he has now allowed just two earned runs in 18 innings over his last three starts against the Astros, Detroit Tigers, and New York Yankees.
Aug 16 · Source via Seattle Mariners Bryan WooTaylor Ward Missing Fourth Straight Game on Sunday
Seattle Mariners outfielder Taylor Ward (quadriceps) is sitting out his fourth straight game on Sunday night versus the division-rival Houston Astros, per MLB.com. Dominic Canzone is in right field and is batting third against Astros right-hander Hunter Brown. If Ward cannot return following Monday's scheduled day off for Tuesday's series opener against the Milwaukee Brewers on the road, he could be forced to the injured list. The 32-year-old veteran right-handed slugger has been a major disappointment for his fantasy managers in 2026, as he enters Sunday's action slashing .240/.370/.337 with a .707 OPS, only seven home runs, 30 RBI, 65 runs scored, and four stolen bases in 442 at-bats after hitting a career-high 36 home runs and driving in 103 runs in 157 games played for the Los Angeles Angels last year. Since being acquired from the Baltimore Orioles at the trade deadline on Aug. 3, Ward has gone 5-for-32 (.156) at the plate with the M's with no home runs, no walks, and six strikeouts in 32 plate appearances.
Aug 16 · Source via Seattle Mariners Taylor WardMichael Arroyo Could Be Next Prospect to Earn the Call in Seattle
Seattle Mariners middle-infield prospect Michael Arroyo has fared well at Triple-A Tacoma since his promotion and could be next in line for a call-up to Seattle, following in the footsteps of Tacoma teammate Brock Rodden. Arroyo has played in 31 games for Tacoma this season and has six homers and 27 RBI while hitting .295. Arroyo, the right-handed hitter out of Colombia, is the No. 3 prospect on the Mariners list. The infielder has a balanced profile with a 55-grade hit tool and power with 50-grade speed. At age 21, he could be ready for his next step to the majors but might need a little more time at Triple-A. Nonetheless, he is looking like a good stash candidate and one that could reward fantasy managers with five-category production given an opportunity to make his MLB debut.
Aug 16 · Source via Prospects Seattle Mariners Michael ArroyoMariners Claim Troy Watson
The Mariners have claimed right-hander Troy Watson off waivers from the Tigers. Watson fills the empty spot on Seattle's 40-man roster. He has been assigned to the Triple-A Tacoma Rainiers. More to come...
Aug 15 · MLB Trade Rumors Detroit Tigers Seattle Mariners Troy WatsonTaylor Ward Remains Out With Quad Tightness
Seattle Mariners outfielder Taylor Ward (quad) remains out of the starting lineup Saturday against the Houston Astros. Ward has been dealing with quad tightness and was already held out Thursday before missing Friday's series opener in Houston as well. The Mariners have not placed him on the injured list, but the continued absence makes his status something fantasy managers will need to watch heading into Sunday's series finale. Seattle acquired Ward from the Baltimore Orioles at the trade deadline and had been using him regularly since his arrival. For now, he should remain on fantasy benches until the Mariners either get him back into the lineup or provide a clearer update on the quad issue.
Aug 15 · Source via Seattle Mariners Taylor WardColt Emerson Heads to the Injured List
Seattle Mariners shortstop Colt Emerson (wrist) was placed on the 10-day Injured List, according to Adam Jude of The Seattle Times. It was originally reported that Emerson was on his way back to Triple-A Tacoma. Instead, Emerson will head to the Major League Injured List due to left wrist inflammation. When healthy, Emerson was struggling with a .190/.246/.335 slash line since being called up to the MLB in May. In a corresponding move, infielder Brock Rodden will head to the Mariners and serve as infield depth. It's unclear when Emerson will return, but he can likely be dropped in redraft formats anyway.
Aug 14 · Source via Prospects Seattle Mariners Colt EmersonTaylor Ward Out Again With Quad Injury on Friday
Seattle Mariners outfielder Taylor Ward (quadriceps) will miss a second straight game due to quad tightness on Friday on the road against the division-rival Houston Astros, per MLB.com. Dominic Canzone is starting in right field and batting third, Victor Robles is in center and hitting eighth, and Julio Rodriguez will be the designated hitter and bat cleanup against Astros right-hander Peter Lambert. Ward's fantasy stock is falling fast. The 32-year-old veteran has been a massive disappointment in 2026 after hitting a career-high 36 home runs and driving in 103 runs in 157 games with the Los Angeles Angels a year ago. In 111 games with the Baltimore Orioles before being dealt to the M's at the trade deadline earlier this month, Ward hit just .246 (101-for-410) with seven home runs and 30 RBI in 506 plate appearances. He's gone 5-for-32 (.156) with zero homers, no walks, and six strikeouts in his first eight games with Seattle and is now nursing an injury. There's little hope for a turnaround for Ward to close out the year at pitcher-friendly T-Mobile Park.
Aug 14 · Source via Seattle Mariners Taylor WardMariners To Option Colt Emerson
The Mariners informed rookie shortstop Colt Emerson that he's being optioned back to Triple-A Tacoma, reports Ryan Divish of The Seattle Times. The move comes after Seattle blanked the Yankees 1-0 on Thursday afternoon, avoiding a sweep and ending a six-game losing streak. Divish adds that infielder Brock Rodden will be selected onto the big [...]
Aug 14 · MLB Trade Rumors Prospects Seattle Mariners Colt EmersonMariners Send Rookie Colt Emerson to Triple-A
The Seattle Mariners sent struggling rookie infielder Colt Emerson to Triple-A Tacoma on Thursday, according to Ryan Divish of The Seattle Times. The top prospect and former first-rounder in 2023 made his MLB debut on May 17, but he did not live up to his high expectations this year, slashing .190/.246/.335 with a .581 OPS, eight home runs, 23 RBI, 24 runs scored, three stolen bases, a 34.4% strikeout rate, and a 6.2% walk rate in his first 68 games across 241 plate appearances. There's still time for Emerson to return to the big-league level before the end of the season at the end of September, but for now, he'll head back to the farm to work on his swing and make more contact at the plate. With J.P. Crawford (wrist) still on the injured list, Leo Rivas is the most likely candidate to see a boost in playing time at the 6 in Seattle with Emerson being sent down. Emerson is rostered in under 10% of Yahoo leagues and is not a must-hold in deep single-year fantasy leagues.
Aug 13 · Source via Prospects Seattle Mariners Colt EmersonRyan Sloan Has Potential For Future Fantasy Impact
Seattle Mariners pitching prospect Ryan Sloan is just 20 years old and has spent all of 2026 in Double-A with the Arkansas Travelers. The right-hander is 2-3 overall with a 3.91 ERA and a 1.16 WHIP with 91 strikeouts in 76 innings pitched. In 17 games started this season, it has been a good sample size for Sloan, the Mariners' second round pick in 2024. The No. 2 overall prospect in the Mariners system behind his Arkansas teammate Kade Anderson, Sloan has a 60-grade fastball and changeup with a 55-grade slider. At 6-foot-5 and 220 pounds, Sloan has an elite frame and is a presence on the mound. He will likely need a bit more work in the minors to polish his overall arsenal. Thus he can likely be left on waiver wires in redraft leagues as he works his way towards a major league debut likely in the next few years.
Aug 13 · Source via Prospects Seattle Mariners Ryan SloanTaylor Ward Out on Thursday With Quad Tightness
Seattle Mariners outfielder Taylor Ward (quadriceps) is out of the starting lineup on Thursday against the hosting New York Yankees due to quad tightness, according to Ryan Divish of The Seattle Times. The good news is that Ward's injury is not considered serious, and he could be available off the bench. Catcher Cal Raleigh is serving as the designated hitter and batting cleanup, while Jhonny Pereda will do the catching and hit eighth against Yankees left-hander Max Fried in the Bronx. After hitting a career-high 36 home runs and driving in 103 in 157 games in 2025 with the Los Angeles Angels, Ward has been one of the biggest disappointments in fantasy this year, entering action on Thursday with a .240/.370/.337 slash line with a .707 OPS, only seven home runs, 30 RBI, 65 runs scored, and four stolen bases across 119 games and 538 plate appearances. In eight games since being acquired from the Baltimore Orioles at the trade deadline, Ward has gone 5-for-32 (.156) with the M's with zero homers, no walks, and six strikeouts. It sounds like he will have a chance to return to Seattle's starting nine for Friday's series opener in Houston against the division-rival Astros.
Aug 13 · Source via Seattle Mariners Taylor WardColt Emerson is Droppable Amidst Second-Half Slump
Since making his MLB debut on May 17, Seattle Mariners infielder Colt Emerson is hitting .190/.246/.335 with eight home runs, 23 RBI, 24 runs scored, and three stolen bases across 241 plate appearances. The 21-year-old got off to a respectable start, hitting .218 with seven home runs and 19 RBI across his first 132 plate appearances. However, Emerson has struggled since the start of July, hitting just .157 with one home run over his last 109 trips to the plate. Emerson is widely viewed as one of the top young prospects in baseball, but his underlying metrics suggest he may not quite be ready for the big leagues. He's struck out in 34.4% of his plate appearances while also logging well below-average barrel (5.0%) and hard-hit (31.2%) rates. Emerson's future outlook remains bright, but redraft managers should feel comfortable dropping him amidst his current struggles.
Aug 13 · Source via Prospects Seattle Mariners Colt EmersonJosh Naylor Returns From Wrist Injury on Wednesday
Seattle Mariners first baseman Josh Naylor (wrist) is starting at first base and is batting sixth on Wednesday against the hosting New York Yankees and right-hander Will Warren, according to MLB.com. Naylor will return to action in the Bronx after taking the day off on Tuesday with soreness in his right wrist. Fantasy managers will want to get the 29-year-old left-handed slugger back in their starting lineups on Wednesday in traditional fantasy leagues against a right-hander. Naylor has been swinging a hot bat since July 26 in a span of 13 games, going 15-for-48 (.313) with an .898 OPS, two home runs, four doubles, five RBI, four runs scored, and two stolen bases in 53 plate appearances. The Canadian native has hit just 10 home runs in his 430 at-bats in 2026, but he also has 23 stolen bases and continues to be a rare speed threat at first base for fantasy managers. Naylor has gone hitless in just one career at-bat against Warren.
Aug 12 · Source via Seattle Mariners Josh NaylorJosh Naylor Out on Tuesday With Wrist Soreness
Seattle Mariners first baseman Josh Naylor (wrist) is out of the team's starting lineup on Tuesday against the hosting New York Yankees in the Bronx with soreness in his right wrist, according to Ryan Divish of The Seattle Times. Naylor tweaked his wrist on a swing during the homestand. Weston Wilson will make the start at first for the M's and will hit eighth against Yankees left-hander Ryan Weathers. The 29-year-old Naylor's power continues to decline (he has only 10 homers in 111 games), but he's on pace for a new career high in stolen bases after swiping 30 bags with the Mariners and Arizona Diamondbacks last year. It's bad timing for Naylor to be banged up, as he's hit .312 (24-for-77) with an .831 OPS, two home runs, five doubles, six RBI, five stolen bases, and nine runs scored in 21 games and 85 plate appearances since the All-Star break in mid-July. He's gone 7-for-24 (.292) with two homers, two doubles, four RBI, two runs, and two stolen bases in the first seven games in August. The Mariners are going to need Naylor down the stretch if they want to qualify for the postseason. Naylor is slashing .263/.328/.372 overall with 42 RBI, 44 runs, and 23 stolen bases to go with his 10 homers in 430 at-bats.
Aug 11 · Source via Seattle Mariners Josh NaylorMichael Arroyo Making the Case for MLB Call-Up
Seattle Mariners second base/outfield prospect Michael Arroyo was already hitting well since his promotion to Triple-A, but the power potential has been on full display as of late. The Mariners' fourth-ranked prospect has belted a home run in three of his last four contests for Tacoma; he's now hit eight doubles, a triple, and six home runs in 26 games with the Rainiers. The 5-foot-10 Colombian is slashing a robust .327/.395/.582 during his time at Triple-A, while striking out at a better-than-average rate of 17.8 percent (8.5 percent walk rate), and he's stolen two bases thus far. The right-handed hitter has played a lot of outfield this year, in addition to his usual second base, which should give him multiple paths to the majors. At the moment, however, there is no room on the major league roster, so a call-up does not appear to be imminent. Nevertheless, the 21-year-old's skillset makes him one of the better offensive stash options out there, so managers with an NA spot available could tuck him away there in hopes of a late-season debut.
Aug 11 · Source via Prospects Seattle Mariners Michael ArroyoLazaro Montes Having Red-Hot Month Of August at Triple-A
Seattle Mariners prospect Lazaro Montes is tearing it up at Triple-A Tacoma this month with four homers and nine RBI in seven games in August with a .367 average. Montes has hit with power all season between Double-A Arkansas and Tacoma with 32 homers and 83 RBI combined between both levels of the minors. At age 21, he is proving his 65-grade power is justified and might be worth a look in the outfield for Seattle before the season is over. The left-handed hitter hit 25 homers at Arkansas before adding seven at Tacoma in 26 games. He has proven he can hit at every level and is worth a look on waiver wires as a stash candidate. The Mariners could use his power bat at the big-league level and it isn't out of the question that they give him his MLB debut.
Aug 10 · Source via Prospects Seattle Mariners Lazaro MontesKade Anderson Extends Shutout Streak as Incredible Debut Season Progresses
Seattle Mariners starting pitching prospect Kade Anderson tossed another shutout in his most recent outing at Double-A and remains the most dominant pitcher in the minor leagues. On August 7, Anderson tossed 5 1/3 innings, allowing just three hits, with no walks, no runs, and nine punchouts. This extended his current shutout streak to 15 innings (three starts). During this stretch, the former LSU star has posted a 0.47 WHIP with a near-perfect 20:2 K:BB. On the season, the southpaw has held a 1.13 ERA with a 0.65 WHIP across his first 87 2/3 professional innings. While Luis Castillo's move to Chicago did make Anderson's path to the majors clearer, the team has indicated he will remain a starter once promoted, so he may need to wait for another injury, as Seattle currently has a full staff. However, his upside on a per-game basis remains elite, and managers should continue to view him as a priority stash option across all league types.
Aug 10 · Source via Prospects Seattle Mariners Kade AndersonJosh Naylor Breaks Out of Mini-Slump With Two Long Balls Against Rays
Seattle Mariners first baseman Josh Naylor broke out of a little 0-for-9 mini-slump in Saturday's 3-2 loss to the Tampa Bay Rays at T-Mobile Park by going 3-for-4 at the plate with two solo home runs to boost his season batting average to .262 and his OPS to .699. Naylor had been in a little funk offensively over his previous three games, but since the All-Star break, he has hit .311 (23-for-74) with an .830 OPS, two home runs, five doubles, six RBI, nine runs scored, and five stolen bases in 20 games and 81 plate appearances. The 29-year-old left-handed slugger hit a career-high 31 home runs in 2024 with the Cleveland Guardians before falling to 20 homers last year with Seattle and the Arizona Diamondbacks. Naylor is sitting at just 10 round-trippers this year after his two-homer game on Saturday as he continues to see a decline in the power department. He's making up for it with his speed, which is rare for a first baseman, as he currently sits with 23 steals (eight away from a new career high). He's now slashing .262/.326/.372 with a .699 OPS and is more of a threat for his wheels than his power.
Aug 9 · Source via Seattle Mariners Josh NaylorCole Young's Recent Hitting Streak has his Stock Trending Up
Seattle Mariners second baseman Cole Young had a recent eight-game hitting streak from July 26 through Aug. 2 that saw him go 15-for-34 (.441) with a home run, a double, two triples, three RBI, and six runs scored across 37 plate appearances. He capped it off with a 4-for-5 night against the Minnesota Twins on Aug. 2. Young has gone 0-for-9 with three walks in three games since losing his eight-game hitting streak, but the recent hot stretch had fantasy managers giving the 23-year-old a look off the waiver wire for middle-infield help in deeper leagues. The former 21st overall pick in the 2022 MLB draft is now hitting .263/.323/.412 with a .736 OPS, 14 home runs, 51 RBI, 54 runs scored, and three stolen bases across 116 games played and 465 plate appearances as a regular for the M's in his first full MLB season in 2026. Young has definitely taken a step forward in his second season in the big leagues, and he's quietly become a steady second base option in counting-stat leagues with improved power at the plate. And with a .280 expected batting average and .334 xwOBA, Young still has time to do more damage before his sophomore season comes to an end. He's rostered in only 21% of Yahoo leagues.
Aug 7 · Source via Seattle Mariners Cole YoungLuke Raley To Undergo Season-Ending Flexor Surgery
August 6: Raley is indeed done for the season, as the outfielder tells The Seattle Times' Ryan Divish that he'll require surgery to repair the flexor tendon in his left arm. He'll undergo the procedure in a couple weeks and said he expects to be ready for the start of the 2027 season. August 5: [...]
Aug 6 · MLB Trade Rumors Seattle Mariners Luke RaleyMichael Arroyo a Higher-End Stash Amid Triple-A Surge
Seattle Mariners infield/outfield prospect Michael Arroyo continues to impress at Triple-A Tacoma, producing four multi-hit performances in his last six games for the Rainiers and drawing more walks and hit-by-pitches (five) than strikeouts (four) during that time. In all, the 5-foot-10 Colombian is hitting .337 with a .921 OPS through 22 games since his promotion to Triple-A. The Mariners' fourth-ranked prospect began the season at Double-A, and his ability to compete at the minors' highest level along with his positional versatility (2B, OF) could earn him a late-season debut in the majors, too. With solid contact and power along with an ability to steal bases, the 21-year-old has the makings of a potential multi-category contributor for fantasy, so the right-handed hitter should be considered a high-end stash option in deeper 12+ team leagues.
Aug 6 · Source via Prospects Seattle Mariners Michael ArroyoKade Anderson Will Work as a Starter Once Called Up
Seattle Mariners President of Baseball Operations Jerry Dipoto said that top pitching prospect Kade Anderson will be part of the team's starting rotation once he's called up to the big leagues, per Adam Jude of The Seattle Times. Jude reports that Anderson is expected to be promoted from Double-A Arkansas "in the coming weeks." Anderson is widely considered to be one of the top prospects in all of baseball and has put together a dominant season in the minor leagues. Across 82 2/3 innings (16 starts), the young left-hander has recorded a 9-1 record with a 1.20 ERA, 0.66 WHIP, and 119 strikeouts. He's posted an absurd 40.5% strikeout rate with just a 4.1% walk rate. Once Anderson gets called up, he offers serious upside for fantasy managers.
Aug 5 · Source via Prospects Seattle Mariners Kade AndersonLuke Raley Expected to Miss the Rest of the Season
Seattle Mariners general manager Justin Hollander said that first baseman/outfielder Luke Raley (forearm) is not expected to play again this year after going on the 10-day injured list with a strained left forearm, according to Adam Jude of The Seattle Times. Raley landed on the IL over the weekend, but he had been battling through his forearm injury for weeks. The Mariners are not ruling out surgery for the 31-year-old left-handed hitter. Raley will finish his sixth year in the big leagues (third with Seattle) in 2026 with a .225/.284/.439 slash line, a .723 OPS, 15 home runs, 39 RBI, 28 runs scored, and a stolen base in 95 games across 287 plate appearances. It's a notable loss of power for the M's lineup, but Seattle is hoping their trade-deadline acquisition of Taylor Ward will help make up for the loss of Raley. Raley will be a free agent this winter after signing a one-year, $2.05 million deal with the Mariners back in January, and it's unclear if the organization has any interest in bringing him back.
Aug 5 · Source via Seattle Mariners Luke RaleyKade Anderson a Prime Stash Option with Path to MLB Opportunities
Seattle Mariners pitching prospect Kade Anderson has thus far lived up to his draft-day billing as one of the top arms in the class after getting drafted third overall in 2025. The former first-rounder has perhaps even exceeded those lefty expectations with a downright dominant first season in professional ball at Double-A Arkansas. The southpaw has yielded zero runs in 11 of his 16 starts, and two runs or fewer in all but one start, resulting in a masterful 1.20 ERA (1.90 FIP), 0.66 WHIP, and a 36.4 percent K-BB%, all of which are the best in the minors out of all pitchers with at least 60 innings pitched. With the Mariners dealing Luis Castillo at the deadline, there is one less rotation option to compete with, and the team's general manager, Justin Hollander, even stated that Anderson is "definitely in the mix" for a rotation spot, so an MLB debut could be coming later this season. Despite not having pitched at Triple-A at all yet, the Mariners' top-ranked prospect should be considered one of the top pitchers to stash for fantasy in hopes he can help fantasy managers down the stretch.
Aug 5 · Source via Prospects Seattle Mariners Kade AndersonBrendan Donovan Activated on Tuesday
Seattle Mariners utility man Brendan Donovan (groin) was activated from the injured list on Tuesday, per Daniel Kramer of MLB.com. Donovan started at third base and batted seventh in his first game back against the Detroit Tigers. The 29-year-old has missed most of the 2026 season due to groin injuries. After initial hitting the injured list in mid-April, Donovan returned in early May before promptly going back on the IL in mid-May. Across 101 plate appearances on the year, Donovan is hitting .274/.386/.452 with three home runs, eight RBI, and nine runs scored. The lefty swinger is unlikely to provide much pop or speed, but he's an above-average source of batting average whose ability to get on base should keep him in the lineup and help him rack up counting stats. In deeper leagues Donovan is worth targeting on the waiver wire as quality roster depth.
Aug 4 · Source via Seattle Mariners Brendan DonovanLazaro Montes Offers Unique Power Upside For Young Prospect
Seattle Mariners outfield prospect Lazaro Montes is having a great minor-league season between Double-A Arkansas and Triple-A Tacoma, hitting for massive power, with 28 homers combined between the two levels to go with 74 RBI and 78 runs scored. He is hitting .238 between both clubs but has been better at Tacoma with a .253 average. He was called up to Tacoma on July 7 and has three homers and eight RBI in 83 at-bats since. Montes is the No. 4 prospect in the Mariners' system and has 65-grade power, which is a massive power upside for a prospect. At age 21, Montes might still need a bit of time to develop in the minors, and we are seeing that right now with him at Triple-A. A dynasty league asset, Montes could be left on the waiver wire in redraft leagues unless a fantasy manager wants to take a big gamble on a stash.
Aug 4 · Source via Prospects Seattle Mariners Lazaro MontesSeranthony Dominguez Traded to the Mariners
The Chicago White Sox traded reliever Seranthony Dominguez, outfielder Nolan Jones, and catcher Boston Smith to the Seattle Mariners in exchange for right-hander Luis Castillo, according to Jeff Passan of ESPN. Dominguez signed a two-year, $20 million contract with the White Sox this offseason to be the team's closer. He struggled as the team's closer earlier in the season, converting just 12 of 17 save opportunities and eventually lost the job to Grant Taylor and Sean Newcomb in June. The 31-year-old owns a 3.99 ERA, 1.33 WHIP, and 47 strikeouts across 38 1/3 innings. With Andres Munoz locked in as Seattle's closer, Dominguez will be used mostly in leverage situations. Fantasy managers can move on from Dominguez outside leagues that reward saves and holds, as he is third in the pecking order for save chances behind Munoz and Jose A. Ferrer.
Aug 2 · Source via Closers Seattle Mariners Seranthony DominguezKade Anderson has Path to MLB Innings Following Major Trade
Seattle Mariners top pitching prospect Kade Anderson should be on the radar of all fantasy managers heading into Week 19. On Saturday, the Mariners traded veteran right-handed pitcher Luis Castillo to the Chicago White Sox per ESPN's Jeff Passan. This move opens a role in their starting rotation for a potential sixth man. While Emerson Hancock currently occupies the No. 5 spot in the rotation, he has also been linked to many trade rumors, which would create an even clearer path for the team's No. 1 prospect to play a major role over the final stretch. Anderson has been knocking on the MLB door since making his pro debut in 2026. Through his first 16 starts at Double-A (82 1/3 innings), the southpaw has posted a dominant 1.20 ERA, 0.66 WHIP, and a 119:12 K:BB. Even if the Mariners were to hold Hancock through the deadline, Anderson could find a role as a sixth man in the staff. If Hancock were to move to a new club, the budding southpaw could earn the call immediately after. He is a priority stash target across all formats as he would hold must-start upside on a per-start basis.
Aug 2 · Source via Prospects Seattle Mariners Kade AndersonMariners Trade Luis Castillo to the White Sox
Seattle Mariners right-hander Luis Castillo was traded to the Chicago White Sox in exchange for Seranthony Dominguez, Nolan Jones, and Boston Smith, according to Jeff Passan on ESPN. Castillo will head to Chicago to bolster the team's starting rotation as the White Sox make a playoff push. The 31-year-old struggled in his previous start against the Dodgers, allowing five runs on 11 hits across five innings. He didn't record a win in July and owned an ugly 5.48 ERA. Hopefully, the move to Chicago will help Castillo turn things around this season. He owns a (3-9) record along with a 5.06 ERA, 1.39 WHIP, and an 86:32 K:BB across 99 2/3 innings. Chicago hopes to get the version of Castillo who posted a 3.50 ERA and a 1.15 WHIP from 2023-2025. It's unclear when Castillo will make his debut with the White Sox, but the change of scenery should only help him rebound from what is the worst season of his career so far.
Aug 2 · Source via Closers Seattle Mariners Chicago White Sox Luis Castillo Seranthony Dominguez Nolan JonesMariners Listening to Offers on Randy Arozarena
The Seattle Mariners are listening to offers for outfielder Randy Arozarena, according to Adam Jude and Ryan Divish of the Seattle Times. Arozarena is set to be a free agent at the end of the season, and trade talks are expected to "intensify" leading up to the MLB trade deadline on August 3. Seattle is also listening to offers for pitchers George Kirby, Emerson Hancock, and Luis Castillo. The Mariners are sellers and are expected to move Arozarena by the deadline. He has been hitting well over his last 12 games, slashing .277/.358/.426 with three home runs, five RBI, eight runs, and a stolen base. Overall, the 31-year-old is slashing .280/.375/.447 with 13 homers and 20 steals over 440 plate appearances this season. Arozarena's fantasy value could take a bump if he gets moved to a better offense. Still, regardless of where the veteran is traded to, he should continue to be a multi-category contributor for fantasy managers.
Aug 1 · Source via Seattle Mariners Randy ArozarenaGeorge Kirby Could Be Moved Before the Trade Deadline
Seattle Mariners right-hander George Kirby could be moved before the August 3 trade deadline, according to Jeff Passan of ESPN. Multiple teams have engaged the Mariners on a potential deal for Kirby. The Mariners are also listening to offers for starters Emerson Hancock and Luis Castillo. Kirby owns a 3.98 ERA, 1.30 WHIP, and 107 strikeouts across 120 innings. The 28-year-old was rocked for seven earned runs, serving up four long balls across just four innings in his last start on Monday. Before that start, Kirby posted a 1.73 ERA in his previous four starts before Monday's implosion. His fantasy value might change a little if he's traded but should remain a viable starter regardless of where he lands. Kirby is scheduled to start on Sunday against the Twins, but the Mariners could hold him back until after the MLB deadline. Stay tuned.
Aug 1 · Source via Seattle Mariners George KirbyKade Anderson Productive Again, Emerging as a Must-Stash
Seattle Mariners left-handed pitching prospect Kade Anderson allowed two hits and two walks while striking out four across 4 2/3 scoreless innings in Friday's start with Double-A Arkansas. He threw 72 pitches, firing 45 of them for strikes. Anderson has been terrific overall and owns a 1.27 ERA, 0.65 WHIP, and a whopping 119:12 K:BB across 82 1/3 innings pitched in Double-A. The 22-year-old has moved beyond Double-A and should be in line for a promotion to the majors, or at least a call-up to Triple-A Tacoma. Anderson might not make his MLB debut until 2027, but could make a case if he continues to put up outstanding numbers in the minors.
Aug 1 · Source via Prospects Seattle Mariners Kade AndersonDominic Canzone Gaining More Waiver Traction After Two-Homer Game
Seattle Mariners outfielder Dominic Canzone kept up his hot hitting of late by going 2-for-4 with two home runs and three RBI in the team's 7-6 win over the hosting Los Angeles Dodgers on Tuesday night. Canzone is now hitting .263/.333/.530 on the season with an .863 OPS, 18 home runs, 49 RBI, 37 runs scored, and a stolen base in his 266 at-bats. The 28-year-old left-handed hitter has already set career highs across the board in most offensive categories, and he's homered three times with seven RBI and three runs scored in his last three games. In 18 games and 78 plate appearances in the month of July, Canzone has gone 17-for-72 (.236) with a .767 OPS, five homers, two doubles, 15 RBI, and seven runs scored. In a strong side of a platoon in Seattle's outfield against righties, Canzone has mixed-league appeal for his power the rest of the way in 2026. He's also hitting .286 (10-for-35) in a limited sample size with four home runs against southpaws. Canzone is rostered in only 15% of Yahoo leagues at the moment.
Jul 29 · Source via Seattle Mariners Dominic CanzoneKade Anderson Twirls Five-Inning Gem at Double-A Arkansas
Seattle Mariners pitching prospect Kade Anderson dealt five scoreless innings in his latest start with seven strikeouts and no hits or walks in his perfect outing at Double-A Arkansas. It was the latest gem from the talented left-hander as he moved his season mark at Arkansas to 9-1 with a 1.27 ERA and 0.64 WHIP with 115 strikeouts in 77 2/3 innings pitched. The video game-like numbers suggest that Anderson has moved beyond Double-A in regards to his skill and development. Triple-A is the next logical step and the Mariners need to make a decision on how they want to deal with their minor-league star. Anderson is now the top ranked Seattle prospect but he might not make the step from Double-A straight to the majors. The Mariners might opt for some time at Triple-A Tacoma. A dynasty league gem, Anderson is a bit of a risky stash for redraft leagues just because he lacks Triple-A experience at this point and his big league debut could be delayed until 2027.
Jul 27 · Source via Prospects Seattle Mariners Kade AndersonLazaro Montes Goes Deep Again as MLB Debut is in Reach
Seattle Mariners outfield prospect Lazaro Montes continues to flash high-end power at the Triple-A level and is making a strong case to earn the call to the big leagues. Since joining the top club in the system (14 games), the young slugger has looked quite comfortable, carrying a .254/.338/.525 line with a .863 OPS. During Saturday's contest, Montes went 2-for-5 with his third Triple-A long ball. This was also his third straight game tallying at least two hits. Earlier in the season, the outfielder spent 79 games at the Double-A level, where he posted a .234/.369/.550 line with a .919 OPS and 25 home runs. Montes is solidifying himself as one of the top power bats in the minor leagues and is in prime position to earn the call as Seattle looks to secure its spot in the postseason.
Jul 26 · Source via Prospects Seattle Mariners Lazaro MontesKade Anderson Sits Atop Stash Rankings Amid Recent Trade Rumors
Seattle Mariners top pitching prospect Kade Anderson has seen his value as a stash candidate greatly increase over the past week. Per reports, the Mariners have expressed interest in potentially trading right-handed starting pitcher Emerson Hancock to bolster their lineup for the stretch run. This move would directly open a path for Anderson to make an impact at the MLB level down the stretch. Additionally, Anderson is coming off potentially his best start of the season and has been nothing short of dominant with Double-A. On Friday night, he tossed five perfect frames with seven punchouts. Overall, he holds a 1.27 ERA and a 0.64 WHIP across 77 2/3 innings of work. With a potential path to MLB innings, Anderson has elite stash upside as the clear top prospect to target across all positions ahead of Week 18.
Jul 25 · Source via Prospects Seattle Mariners Kade AndersonMichael Arroyo Heating Up in Quest to Make Big League Debut
Seattle Mariners prospect Michael Arroyo was recently promoted from Double-A Arkansas to Triple-A Tacoma and is producing with two homers and 13 RBI in just 12 games with Tacoma. Altogether in the month of July, between the two levels, Arroyo is hitting .395 with four homers, 19 RBI, and 19 runs scored. Arroyo, the No. 5 prospect in the Mariners' system can play second base or outfield so he offers some positional flexibility for a potential call up to Seattle. The Mariners are well stocked at the big league level with Cole Young manning second base and boast a loaded outfield. But Arroyo, the talented right-handed hitter out of Colombia is producing in his age 21 season and fantasy managers would be wise to add the talented youngster whose 55-power and 55-hit tool could be on display before the end of the season.
Jul 24 · Source via Prospects Seattle Mariners Michael ArroyoRandy Arozarena Could be a Sell Candidate to Close Out the Year
Seattle Mariners outfielder Randy Arozarena has hit a strong .281 (97-for-345) in his second year with the team on his way to his third All-Star appearance, but his power has been down in 2026, and his underlying metrics don't exactly project a strong finish. The 31-year-old Cuban finished the first half on a good note and went into the All-Star break with a .286/.380/.458 slash line and an .838 OPS in 89 games and 379 plate appearances. He hit only two home runs in June, though, and he's currently batting .273 (15-for-55) with an .883 OPS, three homers, a double, eight RBI, and 12 runs scored in 16 games in the month of July. Under the hood, Arozarena has a .264 expected batting average and .352 xwOBA (.365 current wOBA), suggesting regression to close out his eighth year in the big leagues. He also has a hard-hit rate in the 54th percentile and ranks in the 47th percentile in barrel rate, the 40th percentile in chase rate, and the 58th percentile in expected slugging. Arozarena can get hot in an instant, but he can also be streaky, and although he's making more contact this year, his quality of contact is down.
Jul 24 · Source via Seattle Mariners Randy ArozarenaMariners Open to Moving Emerson Hancock at the Trade Deadline
The Seattle Mariners are telling teams that they are open to moving right-hander Emerson Hancock at this year's trade deadline as they search for a right-handed hitter, people briefed on their discussions told Ken Rosenthal and Will Sammon of The Athletic. Contending teams are likely to be reluctant to take on veteran right-hander Luis Castillo and the $22.75 million he's owed next season. The 27-year-old Hancock is more affordable and controllable, as he's earning $793,300 this year and is under control for four more seasons through 2030. Regression is expected for Hancock, but he's in the midst of a breakout campaign this year with a 6-4 record, 3.16 ERA (3.72 FIP) and 1.01 WHIP with a career-high 97 strikeouts and 26 walks in 105 1/3 innings across his 19 starts. Even though other teams likely don't view him as a top-of-the-rotation arm, he's still valuable under long-term control. Hancock could be Seattle's best pitching trade chip this summer, as they are unlikely to discuss Logan Gilbert, George Kirby, or Bryan Woo. Right-hander Bryce Miller is also believed to be untouchable.
Jul 23 · Source via Seattle Mariners Emerson HancockJosh Naylor's Speed Can't Hide the Power Drop
Seattle Mariners first baseman Josh Naylor has reached base in 14 straight games, and he is still running whenever the opening is there. The power, though, has barely shown up. Naylor is batting .261 with 21 steals, but he has only eight home runs and 13 doubles through 413 plate appearances. July has been even stranger: 17 hits, just two for extra bases, both doubles. His contact remains excellent, with a 12.1% strikeout rate and 18.5% whiff rate. That keeps the average playable. The contact quality is another story. Naylor's 4.6% barrel rate and 36.1% hard-hit rate are both down from last season, and even his .395 xSLG points more toward modest improvement than a real power rebound. He can still help in fantasy leagues. Just don't treat the steals as proof that the full package is coming back.
Jul 23 · Source via Seattle Mariners Josh NaylorMichael Arroyo Flashing Upside at Triple-A
Seattle Mariners infield/outfield prospect Michael Arroyo earned a promotion to Triple-A back on July 7 and has looked like he belongs there, collecting a hit in eight of the 10 games he's played in, going 17-for-45 (.378) with three doubles, a triple, two home runs, and a pair of stolen bases. He's struck out eight times in 51 plate appearances, which is just a 15.7 percent rate (84th percentile), so the 21-year-old does not appear overmatched in that regard either. The Mariners' fourth-ranked prospect offers a solid hit tool with some power to go along with it and some speed to boot, making him an intriguing fantasy asset in both redraft and dynasty formats. At this rate, a late-season debut in the majors looks possible, so managers in deeper leagues could consider stashing him, but if that doesn't happen, look for a productive 2027 in the majors from the 5-foot-10 Colombian.
Jul 22 · Source via Prospects Seattle Mariners Michael ArroyoJonny Farmelo Earns the Call to Double-A
Seattle Mariners outfield prospect Jonny Farmelo earned a promotion to Double-A Arkansas and logged his first game there on Tuesday, collecting a hit and drawing a walk while also stealing a base in the contest. The promotion comes after a solid first half at High-A Everett, where the Mariners' fifth-ranked prospect hit .267 with a .387 on-base percentage thanks to a 15.5 percent walk rate, along with 13 home runs and 26 stolen bases in 83 games. The former first-round draft pick was limited to 75 games total over the last two seasons because of injuries, but now fully healthy, his full tool set has been on display in 2026. The left-handed slugger has a solid hit tool, along with plus power and speed that make him a strong dynasty asset in fantasy so long as he can stay on the field. The 21-year-old could be knocking on the door to the majors sometime next year.
Jul 22 · Source via Prospects Seattle Mariners Jonny FarmeloLazaro Montes Showing Off Power at Triple-A Despite Slow Start
Seattle Mariners outfield prospect Lazaro Montes is hitting just .179 (7-for-39) in his first nine games at Triple-A, but he could be getting more comfortable at the plate, now with an extra-base hit in three consecutive games (three doubles, one home run). In fact, six of his seven hits at that level have gone for extra bases, so the 6-foot-5 Cuban's trademark power is still very evident. Unfortunately, the jump to the new level has seen the left-handed slugger's strikeout rate spike even higher than it was at Double-A (30.4 percent), currently at 38.6 percent, while whiff rate, swinging-strike rate, and zone-contact rate are all some of the worst readings at Triple-A. Granted, it is a small sample, but he'll need to show some improvements if a 2026 debut is going to happen. There's no need to stash the 21-year-old yet, but that could change if he gets hot, and the home run potential alone would make him stashworthy in deeper leagues.
Jul 21 · Source via Prospects Seattle Mariners Lazaro MontesDominic Canzone a High-Upside Power Bat to Prioritize on the Waiver Wire
Across 267 plate appearances in 2026, Seattle Mariners outfielder Dominic Canzone is hitting .261/.333/.513 with 15 home runs, 40 RBI, 34 runs scored, and one stolen base. The lefty-swinger opened the year in a big-side platoon role, but he's logged a .910 OPS so far this season against southpaws and has begun to move into more of a true everyday role. Canzone's underlying batted-ball metrics are elite, as he's logged a 14.6% barrel rate and a 48.6% hard-hit rate. The 28-year-old also owns a solid plate approach, limiting his strikeout rate to a manageable 20.6% while drawing walks in 9.0% of his plate appearances. In leagues where he remains available, Canzone profiles as a must-add power bat to target on the waiver wire.
Jul 21 · Source via Seattle Mariners Dominic CanzoneCal Raleigh Breaks Cold Streak With Grand Slam, Five RBI
Fantasy managers are hoping that Seattle Mariners catcher Cal Raleigh's cold streak will come to an end after his big performance in Monday night's 8-0 shutout win over the visiting Cincinnati Reds at T-Mobile Park. Raleigh went 1-for-5 at the plate with a grand slam, five RBI, and two strikeouts to break out of an 0-for-10 start to the second half of the season over the weekend in three games against the San Francisco Giants. The 29-year-old is still hitting just .163/.266/.307 with a .573 OPS, 10 home runs, 34 RBI, 24 runs scored, and two stolen bases in 69 games across 297 plate appearances. A strained oblique muscle put a damper on his first half, and he hasn't been able to recover after leading the league with 60 long balls and 125 RBI in 159 regular-season games in 2025 as a first-time All-Star. In 14 games (58 plate appearances) so far in July, Raleigh has gone just 8-for-50 (.160) with a .579 OPS, two home runs, two doubles, 11 RBI, three runs, six walks, and 20 strikeouts. At this point, fantasy managers should not be betting on a return to his 2025 form
Jul 21 · Source via Seattle Mariners Cal RaleighKade Anderson's Upside Makes Him a Valuable Stash
Seattle Mariners pitching prospect Kade Anderson has been so good this season at Double-A Arkansas that he is worth stashing on fantasy rosters regardless of how the Mariners intend to deploy him this season. Anderson is 8-1 this season for Arkansas with a 1.36 ERA and 0.69 WHIP with 108 strikeouts in 72 2/3 innings pitched. Anderson, the 22-year-old, has risen to the top overall prospect that the Mariners have in their system. The former No. 3 overall draft pick out of LSU, Anderson is so dominant from the left-hand side that he should leave fantasy managers drooling especially in dynasty leagues, but the question is whether he will be called up this season. With no experience past Double-A, the Mariners could take a wait-and-see approach with the talented flamethrower. With a devastating fastball-changeup combo, with both pitches graded out at 60 overall, Anderson's strikeout upside makes him an appealing stash no matter where he is pitching in the minors.
Jul 20 · Source via Prospects Seattle Mariners Kade AndersonLogan Gilbert Keeps Strong Run Going With 10 Strikeouts on Sunday
Seattle Mariners right-hander Logan Gilbert continued a strong recent run on the mound by picking up his eighth win of the season in the team's 6-3 victory on Sunday over the visiting San Francisco Giants, allowing three earned runs on four hits (one homer) while walking one and striking out a season-high 10 batters in six innings of work. The 29-year-old has given up 14 runs with 52 strikeouts and only eight walks in 46 1/3 innings in his last seven starts, and he's gone at least six innings in all of those outings. Sunday was Gilbert's second time reaching double-digit punchouts this season. The former 14th overall pick in 2018 out of Stetson University is now 8-6 in 2026 with a 3.38 ERA, 0.98 WHIP, and 129:25 K:BB in 120 innings pitched across his 20 starts. Although his underlying metrics suggest some regression coming in the second half, Gilbert is a firm starting pitcher hold in most fantasy leagues with a strong upcoming matchup coming against the division-rival Texas Rangers. He's gone 0-2 in his two previous starts this year against Texas, but he's only allowed four earned runs with a walk and 12 strikeouts in 11 1/3 innings pitched.
Jul 20 · Source via Seattle Mariners Logan GilbertAndres Munoz Regaining Form, Emerging as Second-Half Fantasy Target
Seattle Mariners right-hander Andres Munoz has built positive momentum entering the second half of the season after overcoming a difficult start. Over his last 30 appearances, Munoz has posted a 2.86 ERA and a 1.09 WHIP, looking much more like the All-Star reliever fantasy managers saw in 2024 and 2025. His season numbers have improved to a 3.96 ERA and a 1.21 WHIP, putting him in position for a strong second half. Munoz has consistently shown the ability to dominate hitters with his elite arsenal, and his recent stretch suggests he is returning to that level. Fantasy managers should remain confident in the 27-year-old as a high-upside reliever for the remainder of the season.
Jul 19 · Source via Closers Seattle Mariners Andres MunozEmerson Hancock is Slated to Start on Wednesday
Seattle Mariners starting pitcher Emerson Hancock (hand) is scheduled to take the mound to start against the Cincinnati Reds on Wednesday. Hancock was removed during his final start before the All-Star break after getting hit on the hand by a comebacker. Thanks to the break, Hancock received some extra time to rest and recover. It appears that Hancock won't require a trip to the Injured List, so the extra time off has helped. This season, Hancock owns a 3.17 ERA, 1.00 WHIP, and a 94/25 K/BB ratio across 18 starts. He has been a nice surprise story for the Mariners and is deserving of being rostered in most fantasy formats.
Jul 18 · Source via Seattle Mariners Emerson HancockLazaro Montes Hitting for High Power at Triple-A Tacoma
Seattle Mariners outfield prospect Lazaro Montes has two homers in his last three games since recently receiving a call-up to Triple-A Tacoma. Montes, 21-years-old, was called up to Tacoma on July 7 and has hit for pop since. Prior to his call-up, Montes was hitting .234 with 25 homers and 66 RBI to go with 67 runs scored at Double-A Arkansas. A Cuba native, Montes needs to raise his batting average, but has shown loads of power in his bat. In seven games so far at Tacoma, he is hitting just .133, so he will need to work on his overall hitting skills. His power numbers, however, make him an attractive option in fantasy circles, and managers in mid-size to deep leagues will want to keep an eye on Montes to beat others to his services on the waiver wire. If he maintains this pace, he should be well-positioned to join the Mariners for the stretch run.
Jul 18 · Source via Prospects Seattle Mariners Lazaro MontesBrendan Donovan Moving his Rehab Assignment to Triple-A
Seattle Mariners infielder/outfielder Brendan Donovan (groin) is moving his minor-league rehab assignment to Triple-A Tacoma on Friday night, according to Shannon Drayer. Donovan is moving to the highest minor-league level after starting a rehab assignment in the rookie-level Arizona Complex League on Wednesday. The 29-year-old German native could require a rather lengthy rehab assignment due to the fact that he's been on the shelf for almost two months with a nagging groin injury. When he's ready to return to Seattle, though, he should play regularly for the M's, most likely as the starting third baseman. Before landing on the 10-day injured list, Donovan was hitting .274/.386/.452 with a career-high .839 OPS, three home runs, eight RBI, nine runs, and a stolen base in just 25 games and 101 plate appearances in a small sample size. With limited power/speed upside, Donovan isn't terribly attractive in fantasy baseball leagues except for his contact abilities, high average, and multi-position eligibility at second base, third base, shortstop, and the outfield. He's currently rostered in just under half of Yahoo leagues. Barring a setback, there's no reason why Donovan shouldn't be back with the big-league squad before August.
Jul 17 · Source via Seattle Mariners Brendan DonovanMichael Arroyo Off to Hot Start at Triple-A, In Position for Late-Season MLB Debut
Seattle Mariners infield prospect Michael Arroyo was recently promoted to the Triple-A club and has not slowed down since moving up to the top ranks. Thorugh is first six contests with Tacoma, the team's No. 4 prospect has held a .346/.406/.731 line with a dominant 1.137 OPS. During this stretch, Arroyo has launched two long balls and swiped two bags. He spent the majority of the first half with Double-A Arkansas, where he carried a .287/.364/.456 line with 12 doubles, 10 home runs, and 13 stolen bases. Fantasy managers in deeper leagues should continue to pay close attention to his production as he has put himself firmly on the stash radar. He may only need a brief seasoning at this level before being given the green light to join the Mariners for the final stretch.
Jul 17 · Source via Prospects Seattle Mariners Michael ArroyoJonny Farmelo is Finally Healthy and Productive, but When Will He Debut?
Seattle Mariners outfield prospect Jonny Farmelo is having a solid 2026 campaign at High-A Everett, slashing .271/.387/.486 with seven home runs and 25 steals, and has been particularly hot as of late, going 17-for-49 (.347) with five doubles, a triple, and three home runs over his last 11 games. The Mariners' fifth-ranked prospect was limited to just 75 games between 2024 and 2025 as a result of ACL and rib injuries, but is finally healthy and is starting to live up to his potential as a former first-round draft pick. The 6-foot-1 slugger could see time at Double-A in the second half, but a major league debut will likely have to wait until 2027. Still, with highly rated power and speed tools, the 21-year-old is a solid dynasty league asset, and redraft managers should familiarize themselves with the left-handed hitter in preparation for next season.
Jul 16 · Source via Prospects Seattle Mariners Jonny FarmeloBrendan Donovan Begins Rehab Assignment on Wednesday Night
Seattle Mariners infielder/outfielder Brendan Donovan (groin) began a rehab assignment in the Arizona Complex League on Wednesday, per Shannon Drayer of Seattle Sports 710. Donovan has been sidelined since mid-May by a groin injury, so he could need several games' worth of minor league plate appearances before he's ready to return to the big leagues. Still, Donovan will likely be back with the Mariners sooner rather than later. The 29-year-old got off to a solid start to his first season in Seattle before the injury, hitting .274/.386/.452 with three home runs, eight RBI, nine runs scored, and one stolen base across 101 plate appearances. Donovan appeared exclusively at third base and was mostly deployed in the leadoff spot to open the year. Seattle has since promoted top prospect Colt Emerson to play shortstop and moved veteran infielder J.P. Crawford to third base. However, Donovan's ability to play multiple spots on the diamond should keep him in the Mariners lineup regularly upon his return.
Jul 16 · Source via Seattle Mariners Brendan DonovanNow at Triple-A, is Lazaro Montes a Top Stash Option for Power?
Seattle Mariners outfield prospect Lazaro Montes was recently promoted to Triple-A Tacoma, and although it didn't take long (five games) for him to show off his power with a majestic 436-foot home run, the 6-foot-5 slugger's swing-and-miss tendency has been exploited at the minors' highest level. Through six games and 31 plate appearances for the Rainiers, the Mariners' third-ranked prospect has struck out 13 times, which is a 41.9 percent rate (12.9 percent walk rate). Still, if the left-handed hitter can get that down to a more tolerable level, he could make a major league debut later in the second half of the season, and his prodigious power should land him on the stash radar for fantasy. Home run-needy managers should monitor his progress, and if he gets on a roll, the 21-year-old could quickly become a top stash for his power potential.
Jul 15 · Source via Prospects Seattle Mariners Lazaro MontesIs George Kirby Poised for a Second-Half Breakout?
Across 110 innings (18 starts) in 2026, Seattle Mariners starting pitcher George Kirby has recorded a 7-8 record with a 3.76 ERA, 1.32 WHIP, and 98 strikeouts. The 28-year-old's trademark command remains strong, as he owns a 5.3% walk rate on the year. However, Kirby's strikeout rate has dipped to 21.5% after he posted a career-best 26.1% strikeout rate in 2025. Still, Kirby's elevated WHIP and middling ERA are mostly symptoms of poor batted-ball luck. Opposing batters own a .343 batting average on balls in play against Kirby this season, well above his career mark of .310. Kirby's current strikeout rate limits his fantasy ceiling, but he's shown the ability to miss more bats in the past. If Kirby continues to limit home runs (0.90 HR/9) and sees some BABIP regression, he could emerge as a second-half riser.
Jul 14 · Source via Seattle Mariners George KirbyKade Anderson Leading the Way in Minors, Top Pitcher to Stash?
Seattle Mariners pitching prospect Kade Anderson capped off a spectacular first half of 2026 with a one-inning start in the All-Star Futures Game, facing four batters in the contest with his only blemish coming via a base hit yielded to MLB's No. 1 overall prospect, Jesus Made. The left-hander earned the start for the AL after posting a 1.36 ERA, 0.69 WHIP, and an elite 37.5 percent K-BB% in 72 2/3 innings pitched, all ranking best in the minors among pitchers with at least 60 innings pitched. The former third-overall draft pick looks poised to see some time at Triple-A in the second half and should have a good shot at making his major league debut later in the year. Given his workload, his 108 strikeouts equate to a fantasy-friendly 13.38 K/9, and although his debut is not imminent, the 22-year-old's stuff warrants stash consideration in all leagues with an NA spot for managers looking for pitching help.
Jul 14 · Source via Prospects Seattle Mariners Kade AndersonCal Raleigh's Power Collapse is More Than Bad Luck
Seattle Mariners catcher Cal Raleigh hit the break at .169/.271/.310 with nine home runs in 65 games, a brutal drop after last year's 60-homer season. The oblique strain explains some of it. Raleigh missed 33 days, returned June 16, and has not looked right for long stretches. Still, the underlying damage goes beyond a low average. His hard-hit rate has fallen from 49.6% to 32.5%, his barrel rate from 19.5% to 11%, and the strikeout rate is up to 32.5%. Statcast gives him only a .179 expected average and .356 expected slugging percentage. Seattle has kept him in the heart of the order, so the opportunity is not going anywhere. The old ceiling makes him tempting as a buy-low. Just don't pay for 2025. This version of Raleigh has real second-half risk.
Jul 14 · Source via Seattle Mariners Cal RaleighDominic Canzone Has Emerged as a Must-Add Power Bat
Across 254 plate appearances this season, Seattle Mariners outfielder Dominic Canzone is hitting .264/.335/.529 with 15 home runs, 40 RBI, 33 runs scored, and one stolen base. A lefty swinger, Canzone opened 2026 in a big-slide platoon role for Seattle. However, he's logged a .955 OPS in 30 plate appearances against left-handed pitching this season and has recently begun to emerge as an everyday player in the heart of the Mariners lineup. Canzone's splits against lefties could regress over a larger sample size of at-bats. Still, he owns strong underlying contact metrics with a 15.3% barrel rate and a 48.3% hard-hit rate. Canzone also limits swing-and-miss, as he's posted a respectable 20.9% strikeout rate. Now that he's working his way into a full-time role, Canzone profiles as a must-add power bat on the waiver wire.
Jul 14 · Source via Seattle Mariners Dominic CanzoneEmerson Hancock has X-Rays Come Back Negative
Seattle Mariners starting pitcher Emerson Hancock (finger) was forced to make an early exit from Sunday's outing against the Tampa Bay Rays. Hancock was struck in the hand by a comebacker during the first inning of this game. He attempted to stay in the game, but Hancock was taken out in the second inning. He finished this outing with 1.2 innings of work and two strikeouts. Luckily, the X-rays came back negative, so it appears Hancock has avoided any significant injuries. The All-Star break begins on Monday, so Hancock will get a few days to rest before game action returns. The hope is that he'll be able to avoid a trip to the Injured List, and the Mariners can just slot him towards the back of the rotation to give him as much time as possible to recover.
Jul 12 · Source via Seattle Mariners Emerson HancockEmerson Hancock Removed with Hand Injury
Seattle Mariners starting pitcher Emerson Hancock (hand) was forced to make an early exit from Sunday's outing against the Tampa Bay Rays. Hancock was struck in the hand by a comebacker during the first inning of this contest. He remained in the game afterwards, but was pulled in the second inning. His day will be finished with 1.2 innings of work and two strikeouts. The expectation is that Hancock will undergo further testing to determine the severity of the injury. Luckily, the All-Star break begins on Monday, so Hancock will get a few days off to rest. Fantasy managers should consider Hancock as day-to-day until further notice.
Jul 12 · Source via Seattle Mariners Emerson HancockLazaro Montes on the Stash Radar Amid Recent Promotion to Triple-A?
Seattle Mariners top outfield prospect Lazaro Montes was recently bumped up to the top club in the system following his impressive production at Double-A. To open the season, the 21-year-old carried a .234/.369/.550 line with a sharp .919 OPS over 79 contests at Double-A. During this stretch, Montes hit 25 home runs and chipped in five stolen bases. However, what prompted his promotion was the .253/.413/.614 line and 1.064 OPS he held over the final 25 games at Double-A. While the 21-year-old has gotten off to a slower start at Triple-A, going just 2-for-18 over the first four games, managers should continue to closely monitor his production as his power upside is among the highest in the sport. If Montes can find his footing, the No. 26-ranked prospect in the sport could compete for a late-season promotion to Seattle.
Jul 11 · Source via Prospects Seattle Mariners Lazaro MontesKade Anderson Remains in Play for Second-Half Call-Up
Seattle Mariners top pitching prospect Kade Anderson has continued to showcase elite upside at the Double-A level during his first professional season. Through 14 total starts, the former LSU standout has posted an elite 1.46 ERA, 0.69 WHIP, and a sharp 108:10 K:BB over 72 2/3 innings. Over his last six outings, the left-hander has struck out at least eight hitters in all but one and has even hit the nine-punchouts mark in four of these outings. Overall, in his profile, Anderson has allowed two runs or fewer in 13 of his 14 starts, with his lone five-run outing on May 15 remaining a distinct outlier this season. However, given that Seattle has ample depth on their MLB roster, Anderson remains potentially far from a call-up. Despite this, his upside per start makes him an elite stash target in all 12-team leagues with N/A spots.
Jul 11 · Source via Prospects Seattle Mariners Kade AndersonEmerson Hancock's Ratios Creating a Sell-High Window?
Seattle Mariners starting pitcher Emerson Hancock has been a useful ratio stabilizer, and that is exactly why fantasy managers should at least see what his trade market looks like. The 27-year-old is 6-4 with a 3.23 ERA, 1.01 WHIP, and 92 strikeouts over 97 2/3 innings. He also just shut down the Toronto Blue Jays on Sunday, throwing seven scoreless innings with two hits allowed and five strikeouts in a 4-0 win. That kind of surface line plays in any format, but it is not spotless underneath. Hancock has allowed a .322 xwOBA, 43.6% hard-hit rate, 90.0 mph average exit velocity, and 9.5% barrel rate, so there is still damage risk if the command backs up. He is not someone to dump for a weak offer. If another manager is buying the ERA and WHIP as a full breakout, though, selling makes sense.
Jul 9 · Source via Seattle Mariners Emerson HancockBrendan Donovan Could Start Rehab Assignment Any Day Now
Seattle Mariners infielder/outfielder Brendan Donovan (groin) worked out on Tuesday in Arizona and will go through another workout on Wednesday, according to Ryan Divish of The Seattle Times. The hope is that he will start playing in minor-league rehab games in the rookie-level Arizona Complex League after that. The 29-year-old utility man is making progress, but he's not going to be ready to rejoin Seattle's major-league roster before the end of the first half of the season this Sunday. Depending on how Donovan's rehab assignment goes, though, he could be ready for the start of the second half on Friday, July 17. The former seventh-rounder of the St. Louis Cardinals in 2018 out of the University of South Alabama was expected to be a key contributor for the M's in 2026, but he's managed to play in just 25 games due to injuries, going 23-for-84 (.274) with three homers, eight RBI, nine runs, and a stolen base. Donovan is more attractive in real baseball than fantasy because of his low power/speed ceiling, but he hits for average and is eligible at second base, third base, shortstop, and outfield in Yahoo leagues. He's currently rostered in just under half of Yahoo leagues.
Jul 8 · Source via Seattle Mariners Brendan DonovanBryan Woo's Road Struggles Masking Second-Half Value?
Seattle Mariners starting pitcher Bryan Woo has not been automatic away from home, and that may be the only opening fantasy managers get in trade talks. The 26-year-old gave up nine hits, one walk, and four runs, three earned, over five innings Tuesday, July 7, against Miami. His home-road split is hard to ignore, with Woo sitting at 6-0 with a 2.10 ERA in Seattle and 1-6 with a 6.28 ERA on the road. The full profile is still a lot better than the road blowups. Woo has a 4.23 ERA, but the 1.07 WHIP, 102 strikeouts, 20 walks, and 3.06 FIP are not the numbers of a pitcher to panic-sell. Since he is already rostered in roughly 98% of leagues, this is a trade-market play, not a waiver chase. Check in if his manager is annoyed, but do not sell low.
Jul 8 · Source via Seattle Mariners Bryan WooIs Ryan Sloan the Next Mariners Pitcher to Debut?
Seattle Mariners right-handed pitching prospect Ryan Sloan has spent the entire 2026 season at the Double-A level but has been overshadowed by his teammate Kade Anderson. While Anderson has recently jumped Sloan on the team prospect board (on MLB.com), Sloan possesses nearly as much upside, sitting as MLB.com's No. 8 overall prospect and the team's No. 2 overall prospect. Through the first half of the 2026 season, the 55th overall pick from the 2024 MLB Draft has posted a 4.04 ERA and 1.19 WHIP over his first 62 1/3 innings at Double-A. He has struck out an impressive 77 hitters and walked only 12. During the 2025 season, Sloan made his professional debut and tossed 82 innings with a 3.73 ERA and a 1.16 WHIP over stints in the lower levels. Given Sloan's previous professional experience, the Mariners could turn to him first, rather than Anderson, when they need depth down the stretch. For now, Sloan is worth close monitoring, as a promotion to Triple-A could be imminent.
Jul 8 · Source via Prospects Seattle Mariners Ryan SloanDominic Canzone has Earned a Full-Time Role
Seattle Mariners outfielder Dominic Canzone has earned a full-time, middle-of-the-order role in Seattle's lineup going forward, according to Adam Jude of The Seattle Times. "He's earned it," president of baseball operations Jerry Dipoto said. The 28-year-old left-handed-hitting outfielder is currently hitting .273/.349/.551 with a .900 OPS, 14 home runs, 37 RBI, 32 runs scored, and a stolen base in 205 at-bats in 2026 in his third full season with the M's. He already has a career high in home runs, RBI, and runs scored in 78 games and 232 plate appearances. All four of Canzone's starts against left-handed pitchers have come in the last month, and he's gone 6-for-22 (.273) against southpaws, with two of his 14 home runs on the year. Under the hood, Canzone's xBA of .282 and xwOBA of .383 (wOBA of .384) back up his first-half breakout. He ranks in the 84th percentile in hard-hit rate, the 94th percentile in barrel rate, and the 96th percentile in xSLG. Canzone should be a priority waiver-wire pickup in fantasy leagues for those who need slugging help in the outfield.
Jul 7 · Source via Seattle Mariners Dominic CanzoneKade Anderson's Elite Double-A Production Make him a Priority Stash
Seattle Mariners pitching prospect Kade Anderson suffered his first loss at Double-A Arkansas following his July 3 start. He only allowed two earned runs to pick up his first loss of the season in his 8-1 overall record. His numbers look video game worthy with a 1.36 ERA and 0.69 WHIP with 108 strikeouts in 72 2/3 innings pitched. The No. 3 overall draft pick out of LSU has dominated the minors in his first season of professional baseball. Before a stop in Seattle and a spot in the Mariners rotation, Anderson would likely need some seasoning at Triple-A. So while his numbers call out for a stash for fantasy managers, some patience is required. Managers in mid-size leagues would be smart to use a roster spot now on Anderson and wait to see if it pays off. The prospect pedigree looks elite for Anderson, and it's worth using an early roster spot to acquire his services.
Jul 6 · Source via Prospects Seattle Mariners Kade AndersonMichael Arroyo to Join Triple-A Tacoma, Emerging as Viable Stash Candidate?
Seattle Mariners infield prospect Michael Arroyo was promoted to Triple-A Tacoma earlier on Sunday evening, according to Daniel Kramer of MLB.com. Arroyo is currently viewed as the team's No. 5-ranked prospect and the overall No. 45 prospect on MLB.com. The infielder has spent the first half of the season in Double-A and is being rewarded with an early promotion. Across 65 games with Double-A Arkansas, Arroyo has posted a strong .287/.364/.456 line with 12 doubles, 10 home runs, and 13 stolen bases. Last summer, Arroyo split his time between High-A and Double-A, where he carried an overall .262/.401/.433 line with 17 home runs and 12 stolen bases. While an MLB debut may not occur until late in the season, his five-category profile makes him a worthy stash candidate in deeper 15-team leagues with N/A spots as he is now on the doorstep of the majors.
Jul 6 · Source via Prospects Seattle Mariners Michael ArroyoMariners Promote Lazaro Montes to Triple-A, Late-Season MLB Debut in Play?
The Seattle Mariners are promoting top-ranked hitting prospect Lazaro Montes to Triple-A. Montes is viewed as the overall No. 27-ranked prospect in the sport on MLB.com hand has been among the elite class of power hitters in the minor leagues this season. Through 79 games with Tacoma, the 21-year-old has posted a .234/.369/.550 line with a dominant .990 OPS. Over this stretch, Montes has gone deep 25 times, tacked on 11 doubles, and chipped in five stolen bases. However, his recent surge likely prompted his promotion. Over his last 22 games, Montes has showcased his elite raw power, posting a dominant .958 OPS and seven home runs. Managers should pay close attention to his status at Triple-A, as a hot start could open the door for a late-season debut.
Jul 6 · Source via Prospects Seattle Mariners Lazaro MontesBrendan Donovan to Start a Rehab Assignment on Tuesday
Seattle Mariners infielder/outfielder Brendan Donovan (groin) will start a minor-league rehab assignment on Tuesday, according to Ryan Divish of The Seattle Times. Donovan has been sidelined with a strained left groin since the middle of May, but barring a setback on his rehab assignment, he could return just before the All-Star break and play with the M's next weekend. The 29-year-old former seventh-rounder by the St. Louis Cardinals in 2018 from the University of South Alabama was a first-time All-Star in 2025 in his final year in St. Louis, slashing .287/.353/.422 with a .775 OPS, 10 homers, 50 RBI, 64 runs scored, and three stolen bases in 118 games and 515 plate appearances. Donovan has a limited fantasy ceiling because of his middling power and speed, but his high-contact approach makes him appealing for his high average and on-base percentage, not to mention he's eligible at second base, third base, shortstop, and the outfield in Yahoo leagues. He's currently rostered in just under half of Yahoo leagues.
Jul 4 · Source via Seattle Mariners Brendan DonovanLazaro Montes Continues to Flash High-End Power, Is a 2026 MLB Debut Still in Play?
Seattle Mariners top-ranked outfield prospect Lazaro Montes has showcased high-end power upside at the Double-A level this season. Through 77 total contests with Double-A Arkansas, the slugger has launched 25 round-trippers with a .236/.368/.561 line. During this stretch, he has posted a .929 OPS with a 99:51 K:BB. However, he has been even more impressive as of late. Over his last 28 contests (since June 1), the 6-foot-5 hitter has gone deep 13 times while holding a sharp .281/.439/.729 slash line. Last summer, Montes split his time between High-A and Double-A. Given that he has taken his production up a level over the past month, an early call to Triple-A in the second half remains in play. Managers in deeper redraft leagues should continue to monitor his status, as a late-season call-up during the stretch run is not out of the question.
Jul 4 · Source via Prospects Seattle Mariners Lazaro MontesIs Kade Anderson the No. 1 Stash Target as he Continues to Deal at Double-A?
Seattle Mariners starting pitching prospect Kade Anderson has turned in a dominant June at Double-A Arkansas and is coming off a start in which he allowed his first two earned runs of the month. Overall, he completed June with a 4-0 record and an 0.79 ERA with 32 strikeouts in 22 2/3 innings pitched. It doesn't get much better than that at any level, and fantasy managers would like to see Anderson and his lefty dominance at the Triple-A level sooner rather than later. Anderson has shown a mastery of Double-A with an 8-0 record and 1.22 ERA with 99 strikeouts in 66 2/3 innings pitched. The talented former No. 3 overall pick would likely need some time in Triple-A before the Mariners take a look at him in Seattle. But his numbers show that he could be ready for a close-up and is definitely worth picking up and stashing off the waiver wire in leagues of all sizes.
Jul 3 · Source via Prospects Seattle Mariners Kade AndersonLuke Raley Returning on Thursday Against Angels
Seattle Mariners first baseman/outfielder Luke Raley (forearm) is starting in right field and will bat seventh in his return to the starting lineup on Thursday against the division-rival Los Angeles Angels and right-hander Walbert Urena, according to MLB.com. Raley will return for the M's after sitting out the last three games due to soreness in his left forearm. Due to injuries and poor play recently, the 31-year-old veteran left-handed slugger is only rostered in 12% of Yahoo leagues with the first half of the 2026 season winding down. All 14 of Raley's home runs this year have come against right-handed pitching, but he's coming off a month of June that saw him hit a putrid .125 (7-for-56) with one homer, two doubles, four RBI, three runs scored, four walks, and 20 strikeouts in 19 games across 61 plate appearances. Nobody should be in a rush to throw him back into their starting lineups, especially not in DFS. Raley has never faced Urena in his career.
Jul 2 · Source via Seattle Mariners Luke RaleyLuke Raley Still Out With Forearm Injury
Seattle Mariners first baseman/outfielder Luke Raley (forearm) is sitting out for a third straight game due to a forearm injury in Tuesday's game against the division-rival Los Angeles Angels, per MLB.com. Weston Wilson is making the start in right field for the M's and is batting ninth against Angels right-hander Jose Soriano. Raley remains day-to-day for now, and it's unclear if his forearm injury is serious enough to land him on the 10-day injured list. The left-handed-hitting slugger has been pretty beat up of late and has hit just .125 (7-for-56) with a homer, two doubles, four RBI, three runs scored, four walks, and 20 strikeouts in 19 games played during June. Raley is now only rostered in 13% of Yahoo leagues after his tough month of June. His upside is limited in mixed fantasy leagues because he's in a platoon in Seattle's outfield against right-handed pitchers. Despite a .283 average (49-for-206) on the year, Raley does have some value for his left-handed pop (14 homers) in the right matchups when he's in the starting lineup.
Jun 30 · Source via Seattle Mariners Luke RaleyLazaro Montes Gets Back on Track, Promotion Now in Sight?
Seattle Mariners outfield prospect Lazaro Montes had a brutal 1-for-27 (.037) stretch with a .188 on-base percentage from June 16 through June 24, but in the four games since, the left-handed hitter is 6-for-10 (.600) with seven walks and a hit-by-pitch, leading to an astounding .778 OBP during that time. The Mariners' fourth-ranked prospect is hitting just .239 on the season, but a high 14.2 percent walk rate has buoyed a solid .361 OBP, and his 23 home runs (second-most at Double-A) anchor a .556 slugging percentage. The team would surely like to see some developmental progress on his 29.0 percent strikeout rate, and if the 6-foot-5 slugger's recent approach is any indication of that progress (7:3 BB:K), he could be headed to Triple-A soon. With the kind of power the 21-year-old possesses, he could become a stash candidate later in the year, so keep an eye out for any developments.
Jun 30 · Source via Prospects Seattle Mariners Lazaro MontesCole Young Stays Hot in June, Hits Two Home Runs on Monday
Seattle Mariners second baseman Cole Young continued to swing the bat well in the team's 6-2 win over the division-rival Los Angeles Angels at T-Mobile Park on Monday, going 3-for-3 with two home runs and three RBI to boost his season average to .260 and his OPS to .713. It was the 22-year-old's first multi-homer game of his young career. Although Young's season line might not impress anyone, he has picked things up in June and has gone 30-for-102 (.294) with five home runs, two doubles, 11 RBI, and 11 runs scored in 26 games and 107 plate appearances during the month. The young middle infielder is now slashing .260/.321/.392 on the season with nine long balls, 40 RBI, 37 runs scored, and two stolen bases in his 311 at-bats in his first full year in the majors in Seattle. With an expected batting average of .277 and an xwOBA of .329 (wOBA of .304), Young's batted-ball profile suggests that his improvement in June is no fluke. If you need middle-infield help in deep-mixed fantasy leagues, you could do much worse than Young, who is only rostered in 11% of Yahoo leagues.
Jun 30 · Source via Seattle Mariners Cole YoungMariners Acquire Buddy Kennedy
June 29: Kennedy has reported to the team and is active for tonight's series opener against the Angels. Seattle placed Refsnyder on the 10-day injured list, retroactive to June 27, with right knee inflammation to open a spot on the MLB roster. June 28: The Mariners announced that infielder Buddy Kennedy has been acquired from [...]
Jun 30 · MLB Trade Rumors Seattle Mariners Buddy KennedyBrendan Donovan Could Be Nearing Rehab Assignment
Seattle Mariners infielder/outfielder Brendan Donovan (groin) will be reevaluated after the team's current homestand and could be nearing a rehab assignment, per Ryan Divish of the Seattle Times. Donovan has been on the 10-day injured list since mid-May due to a left groin strain, but it appears he could be nearing a return around the All-Star break. Across 101 plate appearances in 2026 for Seattle, Donovan has hit .274/.386/.452 with three home runs, eight RBI, nine runs scored, and one stolen base. The 29-year-old does not offer much speed or power upside for fantasy managers, but he's a steady source of batting average when healthy. Seattle will have to shift some pieces around when Donovan returns, as the team's infield picture is crowded following the promotion of shortstop Colt Emerson to the big leagues. Still, Donovan's ability to play multiple positions should keep him in the Mariners lineup on a near-everyday basis once healthy.
Jun 29 · Source via Seattle Mariners Brendan DonovanLuke Raley Still Out on Monday With Forearm Injury
Seattle Mariners first baseman/outfielder Luke Raley (forearm) is out of the starting nine for Monday's series opener against the division-rival Los Angeles Angels, according to MLB.com. It is the second straight start that Raley will miss due to soreness in his left forearm. Victor Robles is starting in right field again and will bat eighth against Angels right-hander Ryan Johnson. Raley should be considered day-to-day and could return to the starting lineup as early as Game 2 of the series at T-Mobile Park on Tuesday. The 31-year-old veteran left-handed slugger has interesting pop, but he lacks a ton of fantasy upside in mixed leagues because he doesn't play regularly against left-handed pitchers. In 206 at-bats this year, he's slashing .238/.302/.485 with a .788 OPS, 14 home runs, 35 RBI, 25 runs scored, and a stolen base in 73 games played. Raley has been awful in 19 games (61 plate appearances) in June, going 7-for-56 (.125) with a homer, two doubles, four RBI, three runs scored, four walks, and 20 strikeouts.
Jun 29 · Source via Seattle Mariners Luke RaleyDominic Canzone Back in Lineup on Monday as DH
Seattle Mariners outfielder Dominic Canzone (hamstring) is back in the starting lineup for Monday's series opener against the division-rival Los Angeles Angels and right-hander Ryan Johnson, serving as the designated hitter and batting third, per MLB.com. Canzone is back in action on Monday after sitting out Sunday's series finale against the Cleveland Guardians with right-hamstring soreness. The 28-year-old left-handed-hitting outfielder has been one of the team's most consistent hitters this year and already is up to a career-high 12 home runs, slashing .274/.349/.542 with an .891 OPS, 33 RBI, 29 runs scored, and a stolen base in 190 at-bats. He is hitting .323 (21-for-65) with five home runs, three doubles, a triple, and 11 runs scored in 22 games in June, but he's cooled off of late, going 3-for-23 with a homer, two RBI, three walks, and nine strikeouts in his last eight contests. Canzone lacks fantasy upside in shallow-mixed leagues because he rarely plays against lefties, but he's hitting a nice .281 (48-for-171) with 11 of his 12 long balls against righties this year.
Jun 29 · Source via Seattle Mariners Dominic CanzoneLuke Raley Sitting With Elbow Discomfort
Seattle Mariners first baseman/outfielder Luke Raley (elbow) is out of the lineup for Sunday's series finale against the hosting Cleveland Guardians due to some elbow discomfort, according to Ryan Divish of The Seattle Times. Raley tweaked his elbow on a swing on Saturday night, and it's something he has dealt with before. Outfielder Dominic Canzone is also getting Sunday off to rest his hamstring. Victor Robles will draw into the starting lineup in right field for the M's and will bat ninth against Guardians right-hander Gavin Williams. Raley played all nine innings in Saturday's 4-3 loss in Cleveland, going 0-for-3 with a walk in his four plate appearances. It doesn't sound like Raley's injury is very serious, so he could be right back in action for Monday's series opener at home against the division-rival Los Angeles Angels. Raley rarely faces left-handed pitchers, but he's hitting .243 (46-for-189) with 14 homers, 35 RBI, and 24 runs scored in 209 plate appearances versus right-handed hurlers this year, making him useful for his power from the left side in deeper leagues. He's rostered in 15% of Yahoo leagues.
Jun 28 · Source via Seattle Mariners Luke RaleyColt Emerson a Must-Add Waiver Wire Target Ahead of Second-Half Breakout?
Since being promoted to the big leagues in mid-May, Seattle Mariners infielder Colt Emerson has emerged as his team's everyday shortstop. Across 116 plate appearances, the 20-year-old is hitting .212/.293/.481 with seven home runs, 17 RBI, 15 runs scored, and one stolen base. Emerson's underlying metrics are a bit concerning, as his strikeout rate (31.9%) is higher than his hard-hit rate (31.3%). Still, Emerson has gotten to some power at the MLB level, and he's widely considered one of the top prospects in all of baseball. Emerson stole 10 bases across 38 games at Triple-A before his promotion, so he has some untapped speed potential once he starts getting on base more consistently. Given his upside, Emerson profiles as a worthy waiver wire target despite some of his early struggles in the big leagues.
Jun 27 · Source via Prospects Seattle Mariners Colt EmersonKade Anderson Won't Get Promoted Until the Stretch Run?
The Seattle Mariners have floated the idea of creating a "super 'pen" for the stretch run late in the season, perhaps featuring promotions for pitching prospects Kade Anderson and Ryan Sloan, according to Adam Jude of The Seattle Times. Anderson, the former third overall pick in 2025 out of Louisiana State University and the team's No. 2 prospect per MLB Pipeline, has dominated this year at Double-A Arkansas, going 8-0 with a stingy 1.22 ERA, 0.70 WHIP, and 99:10 K:BB in 66 2/3 innings across his 13 starts. It was reported in mid-June that the 21-year-old southpaw wasn't in Seattle's immediate plans for a big-league call-up, and this report by Jude corroborates that we probably won't see Anderson make his MLB debut until much later in 2026. He's currently rostered in 12% of Yahoo leagues, but fantasy managers in mixed redraft leagues won't have much incentive to hold him now, especially since he might not even pitch in a starting role if he joins the M's for the stretch run. But in dynasty/keeper leagues, Anderson is a must-stash for his clear high-end upside for 2027 and beyond.
Jun 27 · Source via Prospects Seattle Mariners Kade AndersonKade Anderson Poised for Second-Half MLB Debut?
Seattle Mariners top pitching prospect Kade Anderson has been nothing short of dominant in his first taste of professional action. Since joining the Mariners with the third overall pick in last year's MLB Draft, the former LSU standout was sent to Double-A to begin his professional career at the start of the 2026 campaign. With Double-A, the southpaw has looked incredible, logging 61 2/3 innings (12 starts) with a stellar 1.02 ERA and a 0.65 WHIP. During this stretch, Anderson has struck out 90 hitters while walking just eight. However, Seattle currently has a surplus of starting pitchers, which leaves Anderson without a clear path to debut in the near future. With the team opting to use a "piggyback" schedule to keep all six starters engaged, Anderson appears set to debut later in the second half. While his timeline remains undetermined, his upside on a per-start basis remains the highest out of any of the top prospect pitchers. Managers in leagues with N/A spots should still view the former third overall pick as a must-stash option heading into the first week of July.
Jun 26 · Source via Prospects Seattle Mariners Kade AndersonMariners Outright Miles Mastrobuoni
The Mariners announced that infielder/outfielder Miles Mastrobuoni cleared waivers and has been outrighted to Triple-A Tacoma. He had been designated for assignment by Seattle last week. He does not have three years of big league service time nor a previous career outright, so he does not have the right to reject this assignment in favor [...]
Jun 25 · MLB Trade Rumors Seattle Mariners Miles MastrobuoniBryce Miller Continues Excellent Season, Strikes Out 11 in a Loss
Seattle Mariners right-hander Bryce Miller allowed two home runs and picked up his second loss of the year in Thursday's 5-1 defeat at the hands of the hosting Pittsburgh Pirates, but he still pitched extremely well. Miller allowed three earned runs on five hits while walking none and striking out a season-high 11 batters in 5 2/3 innings. The 27-year-old got off to a late start to the 2026 season while recovering from an injury, but he has been very strong in his first eight starts and now sports an ERA under 2.00. Miller has had at least seven strikeouts in each of his last four starts, and he hasn't allowed more than three earned runs in any of his 2026 starts yet. In addition to his nice 1.97 ERA, Miller will carry a 0.72 WHIP and 54:5 K:BB in 45 2/3 frames into an amazing matchup against the division-rival Los Angeles Angels his next time out. Based on how well Miller has looked in 2026, fantasy managers should consider him a must-start for his next outing against the Halos. Miller is now rostered in 80% of Yahoo leagues.
Jun 25 · Source via Seattle Mariners Bryce MillerDominic Canzone Returns From Hamstring Injury on Wednesday
Seattle Mariners outfielder Dominic Canzone (hamstring) is serving as the designated hitter and is batting sixth on Wednesday against the hosting Pittsburgh Pirates and right-hander Braxton Ashcraft at PNC Park, according to MLB.com. Canzone was held out as a precaution in Tuesday's win over the Pirates due to a right-hamstring injury. The left-handed-hitting outfielder is back now, though, and he should draw consideration as a waiver-wire pickup in fantasy baseball leagues on the strong side of a platoon for the M's at DH. The 28-year-old has already set new career highs in home runs (12) and RBI (33) in 70 games this year while slashing a nice .281/.353/.562 with a .915 OPS, 28 runs scored, and a stolen base in 201 plate appearances. Canzone has really come on strong in June, going 19-for-54 (.352) with five home runs, two doubles, a triple, 10 RBI, and 10 runs scored in 19 games played. Fantasy managers searching for outfield upgrades should consider Canzone, who is only rostered in 20% of Yahoo leagues.
Jun 24 · Source via Seattle Mariners Dominic CanzoneLuke Raley Back From Illness, Starting in Pittsburgh
Seattle Mariners outfielder Luke Raley (illness) is starting in right field for Seattle and will bat sixth against the hosting Pittsburgh Pirates and right-hander Mitch Keller at PNC Park on Tuesday, according to MLB.com. Raley missed three games against the Baltimore Orioles last week with tightness in his back and then missed the entire series over the weekend against the Boston Red Sox due to the flu, so this will be his first game back in the lineup since June 14. With the 31-year-old left-handed-hitting outfielder feeling better and back in action, he'll be an option in DFS lineups against a right-hander. The former seventh-round pick of the Los Angeles Dodgers in 2016 out of Lake Erie College doesn't play much against southpaws, but he has done plenty of damage against righties, going 44-for-176 (.250) with all 14 of his home runs and all 35 of his RBI this year. Raley is rostered in only 16% of Yahoo leagues because he's not an everyday player, but his pop against righties is significant enough to warrant a roster spot in deeper leagues for outfield depth.
Jun 23 · Source via Seattle Mariners Luke RaleyDominic Canzone Out on Tuesday With Hamstring Injury
Seattle Mariners outfielder Dominic Canzone (hamstring) is not in the team's starting lineup for Tuesday's tilt on the road at PNC Park against the hosting Pittsburgh Pirates, according to MLB.com. Victor Robles is starting in left field for the M's and will hit eighth against Pirates right-hander Mitch Keller. Canzone is considered day-to-day after leaving Sunday's game early against the Boston Red Sox with a hamstring injury. The Mariners had a day off on Monday, but he's still not feeling good enough to return for the series opener on Tuesday. The good news for the Mariners is that they reinstated outfielder Randy Arozarena (hamstring) from the 10-day injured list, and he will serve as the team's designated hitter on Tuesday. Left-handed-hitting outfielder Luke Raley (illness) is also back from an illness. The 28-year-old Canzone has been an asset against right-handers in mixed leagues in 2026, hitting .281/.353/.562 with a .915 OPS, 12 home runs, 33 RBI, 28 runs, and a stolen base in his 178 at-bats. He has already set career highs in homers and RBI in 70 games played in 2026.
Jun 23 · Source via Seattle Mariners Dominic CanzoneRandy Arozarena Activated From Injured List on Tuesday
The Seattle Mariners activated outfielder Randy Arozarena (hamstring) from the 10-day injured list on Tuesday, according to MLB.com. While the M's have yet to release their starting lineup for Tuesday's contest against the Pittsburgh Pirates and right-hander Mitch Keller at PNC Park, Arozarena should be back in the starting nine. The 31-year-old veteran outfielder is returning from a minor left-hamstring injury after a minimal stay on the IL. Fantasy managers will want to get the two-time All-Star and former Rookie of the Year back in their starting lineups in all formats. Arozarena has been one of Seattle's most consistent offensive performers, slashing .291/.377/.448 with an .826 OPS, seven home runs, 33 RBI, 19 stolen bases, and 47 runs scored across 71 games and 302 plate appearances. He's hitting an even .300 (12-for-40) with a homer, two doubles, seven RBI, four stolen bases, and seven runs scored in 11 games in June as well.
Jun 23 · Source via Seattle Mariners Randy ArozarenaKade Anderson Dominates Again, Could He Force His Way to Seattle for a Debut?
Seattle Mariners pitching prospect Kade Anderson is making Double-A look easy at this point, cruising through six innings in his latest start where he did not allow a run, yielding only two hits and a walk while striking out eight batters. It was the fifth consecutive start in which the lefty did not allow a run, a stretch of 27 2/3 innings, and he's also struck out at least six batters in each of those contests, with 39 strikeouts compared to just three walks. The former third-overall draft pick owns a pristine 1.02 ERA, 0.65 WHIP, and an elite 37.4 percent K-BB%, all of which are tops in the minor leagues out of all pitchers who have thrown at least 50 innings. The Mariners have made it known that the southpaw is not part of their immediate plans in the major league rotation, but a test at Triple-A certainly appears to be on the horizon, and while a major league debut does not appear to be imminent, this kind of elite performance makes the 21-year-old a top pitching stash thanks to his high-strikeout upside coupled with strong command. Stash in an NA spot if available.
Jun 23 · Source via Prospects Seattle Mariners Kade AndersonRandy Arozarena Could Rejoin the Mariners This Week
Seattle Mariners outfielder Randy Arozarena (hamstring) did some baserunning on Sunday and could come off the 10-day injured list before the team's series opener on Tuesday on the road against the Pittsburgh Pirates, according to Adam Jude of The Seattle Times. Seattle has a scheduled day off on Monday. The 31-year-old has been cleared to travel with the M's during their road trip this week, so if he doesn't come back on Tuesday, he could return at any point this week. When Arozarena returns to Seattle's starting lineup, he should be considered a must-start in all fantasy formats. The Cuban slugger has been money at the plate so far in 2026 in his second full season with the Mariners, slashing .291/.377/.448 with an .826 OPS, seven home runs, 33 RBI, 19 stolen bases, and 47 runs scored across 71 games and 302 plate appearances. With the two-time All-Star out recently with a minor hamstring pull, Victor Robles has received extra run in Seattle's outfield.
Jun 22 · Source via Seattle Mariners Randy ArozarenaDominic Canzone Exits With Hamstring Issue, Early Reports Appear Minor
Mariners outfielder Dominic Canzone (hamstring) exited Sunday's game against the Red Sox in the sixth inning with a reported hamstring injury. The 28-year-old showed clear discomfort while running out an RBI groundout and was removed immediately after the play. Canzone later said he expects to be fine and is not expected to miss significant time, as he traveled with the team to Pittsburg for their upcoming six-game road trip. He has been one of Seattle's most productive hitters this season, slashing .281/.353/.562 with a .915 OPS and 12 home runs. The 12 homers are already a career high, showing Canzone has taken a major step forward. The Mariners will continue monitoring his status, but the injury does not appear serious at this point.
Jun 21 · Source via Seattle Mariners Dominic CanzoneLuke Raley to Miss Fifth Straight Game
Seattle Mariners outfielder Luke Raley (illness) remains out of the starting lineup ahead of Saturday's game against the Boston Red Sox. Raley was expected to return on Saturday, but he'll miss his fifth straight game with the flu. The Mariners are still calling him day-to-day, so Raley shouldn't require a trip to the Injured List. Rob Refsnyder and Connor Joe will cover the corner outfield spots against southpaw Connelly Early on Saturday. Fantasy managers should check back on Sunday for another update on Raley. When healthy, Raley has been a pleasant surprise with 14 home runs.
Jun 20 · Source via Seattle Mariners Luke RaleyLuis Castillo Allows Five Runs in Long Relief Role, A Safe Cut in All Formats?
Seattle Mariners right-hander Luis Castillo entered his team's game against the Boston Red Sox on Friday night in the sixth inning and struggled, allowing five runs (four earned) on seven hits across four innings of work. The 33-year-old has generally pitched better since being moved from the rotation into a hybrid starter/reliever role, as he had allowed just six earned runs with 22 strikeouts across 23 innings (five appearances) since the switch leading into Friday. However, Castillo's overall line for the year remains ugly. Across 70 2/3 innings, he's recorded a 2-6 record with a 5.22 ERA, 1.40 WHIP, and 69 strikeouts. At this point, Castillo appears to be the clear odd man out in a Seattle rotation that includes Bryan Woo, Logan Gilbert, George Kirby, Bryce Miller, and Emerson Hancock. Barring an injury to one of the Mariners' top arms, Castillo is likely safe to drop in most fantasy formats.
Jun 20 · Source via Seattle Mariners Luis CastilloShould Colt Emerson be Considered a Priority Waiver-Wire Target?
Across 94 plate appearances since making his MLB debut in mid-May, Seattle Mariners infielder Colt Emerson is hitting .235/.309/.529 with six home runs, 16 RBI, 13 runs scored, and one stolen base. The 20-year-old has struggled with swing-and-miss, posting a 29.8% strikeout rate that may put a ceiling on his batting average. However, he's shown off his power stroke in recent weeks and has already hit four home runs in June. Emerson has also established himself as the everyday shortstop in Seattle, with veteran Mariners infielder J.P. Crawford being moved from shortstop to third base upon his return from a hand injury earlier this month. Emerson's underlying contact metrics (5.3% barrel rate, 29.8% hard-hit rate) do not support his power output so far, which should be a bit of a red flag for fantasy managers. Still, Emerson is considered to be one of the top prospects in all of baseball and hit seven home runs across 169 plate appearances at Triple-A this season before his promotion. Given his prospect pedigree and his role in Seattle, Emerson profiles as a priority waiver wire target.
Jun 19 · Source via Prospects Seattle Mariners Colt EmersonIs Kade Anderson the Top Pitching Prospect to Stash?
Seattle Mariners left-handed pitching prospect Kade Anderson has seen his short-term fantasy stock take a hit this past week, but the budding ace remains firmly on the stash radar. The Mariners acknowledged that they will be looking to "piggyback" each of their MLB starters and do not view Anderson as part of their immediate plans. While this could change in the second half, for now it appears the former LSU superstar will remain in the minor leagues for the foreseeable future. However, during his first taste of professional baseball, the southpaw has looked nothing short of dominant, posting an elite 1.13 ERA, 0.66 WHIP, and an 82:7 K:BB over 55 2/3 innings of work. While his path to the majors is not overly clear, his upside remains elite, making him a top-stash candidate in standard formats with NA spots.
Jun 19 · Source via Prospects Seattle Mariners Kade Anderson