Seattle Mariners News

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Luis Castillo • SP • Mariners

Luis 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.

4 hours ago

Julio Rodríguez • CF • Mariners

Julio Rodriguez Returns From Hamstring Injury on Friday

Seattle Mariners outfielder Julio Rodriguez (hamstring) is starting in center field and is batting third for the M's in Friday's series opener against the visiting Boston Red Sox and left-hander Ranger Suarez, according to MLB.com. Rodriguez was pulled from Wednesday's game early against the Baltimore Orioles after tweaking his hamstring, and he sat out of the series finale at T-Mobile Park on Wednesday, but now that he's back in there, fantasy managers will want to return him to their starting lineups for the weekend series in Seattle against the BoSox. The 25-year-old three-time All-Star and former American League Rookie of the Year comes into Friday's series opener with a .249/.310/.429 slash line, .739 OPS, 13 long balls, 35 RBI, 40 runs scored, and nine stolen bases across his 301 at-bats in 2026. J-Rod has struggled so far in June, going 11-for-58 (.190) with just one homer, two doubles, five RBI, four steals, eight runs, seven walks, and 13 K's in 66 plate appearances. However, he's hitting .833 with a 2.000 OPS in six career at-bats against Suarez.

17 hours ago

Colt Emerson • 3B • Mariners

Should 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.

23 hours ago

Kade Anderson • SP • Mariners

Is 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.

Yesterday

Lazaro Montes • RF • Mariners

Lazaro Montes Flashing Elite Raw Power in Minor Leagues, Can He Debut in 2026?

Seattle Mariners outfield prospect Lazaro Montes has had a strong start to the Double-A regular season and is establishing himself as one of the top emerging power hitters in the minor leagues. Across 64 games with Double-A Arkansas, the young slugger has gone deep 20 times while holding a .237/.346/.543 line and an .889 OPS. Since the start of June, Montes has been even more dominant at the plate, launching eight of these long balls and carrying a .316/.409/.772 line. This elite play has put himself in strong contention to earn the call to Triple-A, which will open the door for a second-half debut. While fantasy managers will need to wait for him to move up to Triple-A before declaring him a top stash candidate, he is firmly on the watch list, given his elite power upside. If he maintains this pace, he could provide a major spark to a Mariners lineup as they look to clinch a spot in the postseason down the stretch.

Yesterday

Luke Raley • RF • Mariners

Luke Raley Taking Another Day Off With Back Injury

Seattle Mariners outfielder Luke Raley (back) is not ready to rejoin the starting lineup in Thursday's series finale against the visiting Baltimore Orioles, per MLB.com. With Randy Arozarena (hamstring) on the injured list and Julio Rodriguez (hamstring) dealing with hamstring spasms, the M's will roll with an outfield of Miles Mastrobuoni in left field, Victor Robles in center, and Dominic Canzone in right on Thursday against Orioles right-hander Shane Baz. Raley will be missing his third straight game, and if he continues to be unavailable going into the weekend series against the Boston Red Sox, he could be a candidate to join Arozarena on the IL. The 31-year-old left-handed slugger rarely plays against left-handed pitchers, but he is producing plenty of power against righties for fantasy managers, currently hitting .241/.303/.503 with an .806 OPS, 14 home runs, 35 RBI, 24 runs scored, and a stolen base in his 191 at-bats in 2026. Raley is currently rostered in 21% of Yahoo leagues.

Yesterday

Julio Rodríguez • CF • Mariners

Julio Rodriguez Sitting Out With Hamstring Injury

Seattle Mariners outfielder Julio Rodriguez (hamstring) is out of the starting lineup for Thursday's series finale against the Baltimore Orioles at T-Mobile Park after injuring his hamstring on Wednesday night, according to MLB.com. Victor Robles will start in center field for the M's and bat eighth against Orioles right-hander Shane Baz. The Mariners said that Rodriguez was only dealing with hamstring spasms on Wednesday evening, so he should be considered day-to-day for now. Check back on Friday to see if he's available to play in the series opener versus the Boston Red Sox. Seattle's outfield depth is being tested this week with J-Rod hurt, Luke Raley (back) nursing injuries, and Randy Arozarena (hamstring) landing on the injured list earlier this week. Robles, Miles Mastrobuoni, and Dominic Canzone are starting in the outfield on Thursday. When active, Rodriguez continues to be a must-start in all fantasy baseball formats. The 25-year-old Dominican All-Star is slashing .249/.310/.429 with a .739 OPS, 13 homers, 35 RBI, 40 runs scored, and nine stolen bases in his 301 at-bats so far in 2026.

Yesterday

Josh Naylor • 1B • Mariners

Josh Naylor Returns for Series Finale Against Baltimore

Seattle Mariners first baseman Josh Naylor (shin, wrist) is back at first base and is batting third for the M's in their series finale on Thursday against the visiting Baltimore Orioles and right-hander Shane Baz, according to MLB.com. Naylor will return to the starting nine after sitting out the last two games with a bruised shin and wrist soreness. Fantasy managers will want to get him back into their starting lineups in traditional formats against a right-handed pitcher. The Canadian native is hitting .253 (68-for-269) with eight home runs, 32 RBI, 13 stolen bases, and 27 runs scored in his first full season in the big leagues. So far in 12 games in June, Naylor has gone 12-for-48 (.250) with three home runs, three doubles, eight RBI, seven runs scored, and a stolen base in 52 plate appearances. He has only faced Baz three times in his career and has one hit.

Yesterday

Julio Rodríguez • CF • Mariners

Julio Rodriguez Dealing With Hamstring Injury

Seattle Mariners manager Dan Wilson said that outfielder Julio Rodriguez (hamstring) was pulled from Wednesday's game early against the Baltimore Orioles due to a hamstring spasm, according to Ryan Divish of The Seattle Times. Rodriguez tweaked his hamstring making a leaping catch in center field and was seen heading to the trainer's room. Before leaving, he went 1-for-3 at the plate with a run scored and two strikeouts. It looks like the Mariners pulled the 25-year-old All-Star as a precaution, and his injury doesn't appear to be very serious. Fantasy managers still shouldn't expect J-Rod to play in Thursday's series finale at T-Mobile Park against the Orioles, but he should be available this weekend in Seattle for a series against the Boston Red Sox. The three-time All-Star has hit .248/.310/.426 this year with a .736 OPS, 13 home runs, 35 RBI, 39 runs scored, and nine stolen bases in 74 games across 326 plate appearances. After his second 30-30 season in 2025, Rodriguez is a clear must-start in fantasy when he's active.

2 days ago

Julio Rodríguez • CF • Mariners

Julio Rodriguez Leaves Early on Wednesday With Undisclosed Injury

Seattle Mariners outfielder Julio Rodriguez (undisclosed) was removed from Wednesday night's game early against the visiting Baltimore Orioles due to an undisclosed injury, according to Ryan Divish of The Seattle Times. J-Rod left the dugout with a trainer and went to the clubhouse. Before leaving the contest, Rodriguez went 1-for-3 at the plate with a double, a run scored, and two strikeouts. Victor Robles moved from right field to center field, with Rob Refsynder entering the game to play right field for the M's. Seattle can ill-afford to lose the 25-year-old Dominican for an extended amount of time with Randy Arozarena (hamstring) going on the injured list on Tuesday and Luke Raley (back) also banged up of late. We should have an update on Rodriguez early on Thursday, so check back then. Even if it's not a serious injury, fantasy managers shouldn't expect him to be in the lineup for the series finale against the O's at T-Mobile Park on Thursday. Rodriguez came into Wednesday's tilt with a .248/.310/.426 slash line, .736 OPS, 13 home runs, 35 RBI, 39 runs scored, and nine stolen bases in 74 games across 326 plate appearances.

2 days ago

Luke Raley • RF • Mariners

Luke Raley Missing Second Straight Game With Back Injury

Seattle Mariners outfielder Luke Raley (back) will sit out a second straight game due to a back injury on Wednesday against the visiting Baltimore Orioles, per MLB.com. Raley was scratched from Tuesday's contest at T-Mobile Park with back tightness. Victor Robles is starting in right field and batting sixth, while Connor Joe will start in left field and hit eighth against Orioles right-hander Kyle Bradish. The M's are thin in the outfield this week with Raley nursing a back injury and Randy Arozarena (hamstring) landing on the injured list on Tuesday. For now, fantasy managers in deeper leagues should consider Raley day-to-day with his back ailment and check back for Thursday's series finale against the O's to see if he's ready to return to the lineup. The 31-year-old left-handed hitter typically only plays when the M's are facing a right-hander, which limits his fantasy upside. Raley has still managed 14 home runs on the season with a .241/.303/.503 slash line, .806 OPS, 35 RBI, 24 runs, and a stolen base in his 191 at-bats. Raley is on pace to set a new career high in long balls, with his previous high-water mark coming in 2024 with 22 bombs.

2 days ago

Josh Naylor • 1B • Mariners

Josh Naylor Still Out With Shin/Wrist Injuries

Seattle Mariners first baseman Josh Naylor (shin, wrist) continues to sit out for Wednesday's game at T-Mobile Park against the visiting Baltimore Orioles, according to MLB.com. Miles Mastrobuoni will start at first again for the M's and will hit ninth in the order against Orioles right-hander Kyle Bradish. Naylor is missing a second straight game due to shin and wrist injury, but he's expected to avoid a trip to the injured list. Fantasy managers will want to check back on Thursday to see if the left-handed slugger is ready to return for Thursday's series finale against Baltimore. Managers setting DFS lineups will want to steer clear of Mastrobuoni, especially at the bottom of the lineup. Naylor entered action on Wednesday slashing .253/.315/.372 with a .687 OPS, eight home runs, 32 RBI, 13 stolen bases, and 27 runs scored in his 269 at-bats in his first full season with the Mariners. In 12 games in June, he's gone 12-for-48 (.250) at the plate with three homers, three doubles, eight RBI, seven runs, and a stolen base.

2 days ago

Logan Gilbert • SP • Mariners

Logan Gilbert Fans 10 on Tuesday, Heating Up on the Mound

Seattle Mariners right-hander Logan Gilbert has pitched much better of late after a slow start to his 2026 season, and it continued on Tuesday night at T-Mobile Park in a 3-1 win over the visiting Baltimore Orioles. Gilbert allowed just one earned run on just two hits while walking one and striking out a season-high 10 in seven innings of work for his fifth win of the year and to drop his season ERA to 3.43. The lone run that the 29-year-old gave up on the night came in the first inning, and he settled in from there and retired 16 batters in a row at one point. The strong performance against the O's has the former 14th overall pick in 2018 out of Stetson University sitting at 5-4 on the season with a 3.43 ERA (3.79 FIP) and 1.03 WHIP with 92 punchouts and 20 walks in 86 2/3 innings across 15 starts in his sixth year in the majors. Since allowing a season-high seven earned runs on May 16, Gilbert has allowed five earned runs on 16 hits while walking eight and striking out 35 while going 3-0 in five starts. He should be considered a must-start as he heats up as he heads into a strong matchup versus the Boston Red Sox.

3 days ago

Lazaro Montes • RF • Mariners

Lazaro Montes Plants Himself on the Stash Radar

Seattle Mariners outfield prospect Lazaro Montes blasted his 20th home run of the season on Sunday and his eighth in his last 13 games, a torrid stretch in which the left-handed hitter has batted .346 with 17 runs scored, 21 RBI, and two stolen bases. For the season, the Mariners' fourth-ranked prospect is hitting .242 with a .347 on-base percentage that is partially bouyed by a strong 12.1 percent walk rate, along with a .555 slugging percentage. A 28.7 percent strikeout rate is his Achilles heel, but the prodigious power that comes with it cannot be denied. The 6-foot-5 slugger belted 32 home runs in 131 games a season ago, and is currently on pace to blow past that number. The 21-year-old should see time at Triple-A in the coming weeks, and if he can ensure that his strikeout rate doesn't spike at the minors' highest level, then a late-season MLB debut is well within reach; then again, with the Mariners' recent decision to promote Curtis Washington Jr. to the majors straight from High-A, any sort of timing is possible. Fantasy managers should start to consider stashing the powerful Cuban for his home run and RBI upside, though it may come at the cost of batting average.

3 days ago

Andrés Muñoz • RP • Mariners

Andres Munoz Bounces-Back on Wednesday to Earn 11th Save

Mariners right-hander Andres Munoz delivered a clean inning of work on Tuesday to pick up his 11th save of the season, working around a hit and striking out one. The 27-year-old has struggled recently, posting a 9.53 ERA across his last seven appearances and blowing two save opportunities during that stretch. His season numbers now sit at a 5.68 ERA, 1.42 WHIP, and 38 strikeouts across 25 1/3 innings. The strikeout ability and electric arsenal that made Munoz a dominant ninth-inning option remain intact, but consistency will be key moving forward. The closer role is still his to lose, and fantasy managers should continue to monitor the right-hander closely.

3 days ago

Curtis Washington Jr. • CF • Mariners

Mariners Promote Curtis Washington Jr., Worth a Look for Elite Speed?

The Seattle Mariners have officially called up 26-year-old outfielder Curtis Washington Jr., who is in line to make his major league debut after being selected in the 19th round of the 2022 MLB Draft. After spending five seasons in the minors, Washington earned the promotion as injuries to Randy Arozarena and Luke Raley created an opening in the outfield. Known for his elite speed and strong defensive skills, Washington slashed .190/.280/.394 with a .674 OPS at High-A this season. While the offensive numbers do not stand out, his athleticism and versatility give him several ways to contribute. Washington also swiped 32 bases in 95 games across multiple minor league levels last season. The Mariners will welcome the defensive reinforcement as they continue their push in the AL West.

3 days ago

Randy Arozarena • LF • Mariners

Randy Arozarena Heading to Injured List With Hamstring Inflammation

The Seattle Mariners are placing outfielder Randy Arozarena (hamstring) on the 10-day injured list on Tuesday after an MRI exam showed mild left-hamstring inflammation, which is more than the team expected, according to Ryan Divish of The Seattle Times. The Mariners' hands were a little tied with both outfielder Luke Raley (back) and first baseman Josh Naylor (wrist) nursing minor injuries this week. The Mariners said earlier that Arozarena would be available off the bench on Tuesday and was expected to return to the starting lineup on Wednesday, so we'd expect him to be ready to come off the IL when he's eligible. Until then, both Rob Refsnyder and Victor Robles could platoon in Seattle's outfield, with Refsnyder starting on the short side of a platoon versus lefties. It's a tough blow in the short term for the M's, as Arozarena has been one of the team's top producers in 2026 with a .291/.377/.448 slash line, .826 OPS, seven long balls, 33 RBI, 19 stolen bases, and 47 runs scored in his 261 at-bats. Fantasy managers need to keep Arozarena stashed in an IL spot in all formats.

3 days ago

Brendan Donovan • 3B • Mariners

Brendan Donovan Begins Running Progression, Return Imminent?

Seattle Mariners infielder/outfielder Brendan Donovan (groin) started a running progression on Tuesday, which is the biggest hurdle to clear as he attempts to return from a strained left groin, according to Daniel Kramer of MLB.com. Donovan's running progression is expected to last 10 days to two weeks, so his return to the big-league roster isn't imminent. From there, if he avoids any setbacks, Donovan could go straight into a minor-league rehab assignment. The 29-year-old left-handed hitter has been sidelined since the middle of May, but barring a setback, he will have a shot to rejoin the big-league squad before the All-Star break in mid-July. Donovan is a contact-oriented utility man who was starting regularly at third base for Seattle before his injury, hitting .274 (23-for-84) with three homers and eight RBI in just 25 games played. When he's ready to return, he should return to an everyday role with the M's, which could push infielder J.P. Crawford to the bench. Donovan is currently rostered in just over half of Yahoo leagues.

3 days ago

Andrés Muñoz • RP • Mariners

Andres Munoz Ready to Go on Tuesday

Seattle Mariners right-handed closer Andres Munoz (back) is fine and good to go for Tuesday's series opener at T-Mobile Park versus the Baltimore Orioles, according to Ryan Divish of The Seattle Times. The Mariners pulled Munoz from his outing on Sunday against the Washington Nationals with back tightness, but after a scheduled day off on Monday, he's ready to go for the series opener in Seattle on Tuesday. The 27-year-old Mexican reliever has had his fair share of struggles in 2026 in his seventh year in the big leagues after back-to-back All-Star campaigns, but he's presently in no real danger of being demoted from the closer's role by manager Dan Wilson. In his 27 appearances out of the bullpen, Munoz is 3-4 with a career-worst 5.92 ERA (3.68 FIP), 1.44 WHIP, 10 saves, and a 37:11 K:BB in 24 1/3 innings pitched. He will have a long leash after saving a career-high 38 games for the M's in 2025. Fantasy managers speculating on saves and stashing setup men should have their eyes on lefty Jose A. Ferrer if Munoz continues to struggle or goes down with an injury.

3 days ago

Luke Raley • RF • Mariners

Luke Raley Sitting Out With Back Tightness

Seattle Mariners outfielder Luke Raley (back) is sitting out of Tuesday's series opener against the visiting Baltimore Orioles due to back tightness, according to Adam Jude of The Seattle Times. Dominic Canzone is starting in right field for the M's and will hit cleanup against Orioles right-hander Brandon Young. For now, we'll consider Raley to be day-to-day. If he's feeling better on Wednesday, he could be right back in the lineup against Baltimore right-hander Kyle Bradish. In his sixth year in the majors and third year with Seattle, Raley is on pace to set a new career high in home runs. Through 66 games in 2026 across 210 plate appearances, the left-handed slugger is slashing .241/.303/.503 with an .806 OPS, 14 home runs, 35 RBI, 24 runs scored, and a stolen base. The power is nice from the left side, but the fact that he rarely faces left-handers limits his overall fantasy upside in mixed leagues. Raley has gone just 2-for-16 (.125) with none of his 14 home runs against lefties this season.

3 days ago

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