SEATTLE -- The Mariners’ bullpen returned a key reinforcement before Wednesday’s series finale vs. the White Sox, as setup man Matt Brash was activated from the 15-day injured list. And fellow leverage reliever Gabe Speier might not be far behind him, as he began a rehab assignment Wednesday night with

This page will be updated throughout the year with all the latest Mariners injury news and transactions.

SEATTLE -- The exciting news of Colt Emerson being called up to make his Major League debut on Sunday came in the wake of a brutal development for Brendan Donovan, whose left groin muscle strain has again sidelined him on the 10-day injured list. Donovan underwent imaging on Sunday morning

SEATTLE -- Mitch Garver returned to the Mariners lineup for Sunday Night Baseball against the Padres, after being held out the day prior due to back tightness. But Brendan Donovan was sidelined for the second straight day, as he continues to work through load management from his recent IL stint.

SEATTLE -- Already without their runner-up for AL MVP, the Mariners saw their lineup take two more notable hits before Saturday’s 7-4 loss to the Padres, as catcher Mitch Garver and third baseman Brendan Donovan were each scratched two hours before first pitch. Garver, who was nursing back tightness from

SEATTLE -- Cal Raleigh opened up for nearly 15 minutes on Friday about his first career stint on the injured list, his outlook to return from a right oblique strain, how much pain he was playing through and much more.

HOUSTON -- Cal Raleigh’s first career stint on the injured list comes with a lot of questions, many that the Mariners simply didn’t have answers for in the immediate aftermath. Chief among them, what’s the severity of the right oblique strain? And what’s his timeline for recovery?

HOUSTON -- For the first time in his career, Cal Raleigh is heading to the IL. The Mariners placed the reigning American League MVP runner-up on the 10-day injured list ahead of Thursday afternoon’s 8-3 series-finale win over the Astros with a right oblique strain. It’s an injury that first

HOUSTON -- It wasn’t the Mariners’ most deflating defeat of the 2026 season, but it might’ve been their most exhausting. And a casualty of the 4-3, walk-off loss to the Astros that reached the 10th inning was their star catcher, as Cal Raleigh was forced to exit to begin the

HOUSTON -- Bryce Miller is ready to roll. The Mariners activated the right-hander from the 15-day injured list on Wednesday, when he’ll make his much-anticipated 2026 debut against the Astros at Daikin Park. Lefty José Suarez was designated for assignment to clear a roster spot.

SEATTLE -- Bryce Miller will join the Mariners this weekend in Chicago, a source told MLB.com on Thursday morning, setting the stage for a possible activation from the 15-day injured list for his next scheduled outing. However, this reunion will more be centered on a debrief with Seattle’s coaching and

EVERETT, Wash. -- Tacoma. Everett. Tacoma. Back to Everett. Bryce Miller's rehab assignment, coming back from the left oblique strain that landed him on the injured list during Spring Training, continued its back-and-forth journey around Western Washington on Wednesday, with five innings for High-A Everett in the AquaSox’s 10-0 win

SEATTLE -- Cal Raleigh was out of the Mariners’ lineup for the third straight day for Monday’s series opener against the Braves, but he wasn’t the only notable player sidelined. The club also revealed that Gabe Speier, their top leverage lefty, has been dealing with inflammation in his pitching shoulder

SEATTLE -- Cal Raleigh was scratched from the Mariners’ lineup before Saturday’s game against the Royals due to "general soreness," manager Dan Wilson said following Seattle's 3-2 extra-innings loss.

SEATTLE -- The Mariners spent Friday afternoon contemplating whether Matt Brash needed to be placed on the 15-day injured list after an MRI revealed inflammation in his right lat. The club ultimately did make that transaction two hours before its series opener vs. Kansas City. The move is retroactive to

MINNEAPOLIS -- The Mariners have been incredibly delicate with leverage reliever Matt Brash since the outset of Spring Training, which made his abrupt departure from Wednesday afternoon’s 5-3 win over the Twins that much more alarming. Postgame, Brash revealed that he’d been dealing with discomfort in his right side, and

MINNEAPOLIS -- Brendan Donovan is nearing a return from the injured list. The Mariners’ third baseman is tentatively targeted for activation from the 10-day shelf during Seattle’s upcoming homestand against Kansas City and Atlanta, which begins Friday and lasts six games.

ST. LOUIS -- The Mariners were without one of their hottest hitters in Sunday’s lineup. Josh Naylor was held out as a precaution with what manager Dan Wilson described as minor quad tightness He was available off the bench, but he did not enter in the Mariners' 3-2 win over

Bryce Miller made another big step in his recovery process from left oblique inflammation that has sidelined him to begin the year.

SEATTLE -- The Mariners made three roster moves on Monday afternoon, but it was the one that they didn’t that stirred the most speculation. Brendan Donovan was placed on the 10-day injured list with a left groin muscle strain that was revealed after the third baseman underwent imaging on Sunday.

SEATTLE -- Brendan Donovan was out of the Mariners’ lineup for the second straight day ahead of Sunday’s series finale vs. Texas, but he was expected to be available off the bench. The third baseman has remained day to day since exiting Friday’s game with left hip tightness and is

SEATTLE -- Bryce Miller experienced some expected rust in his first rehab start for Triple-A Tacoma on Saturday, but stuff-wise, everything appeared sharp. Miller averaged 97.1 mph on his four-seam fastball and mixed in the slider, splitter, knuckle curve, sinker and sweeper -- got all that? -- over 33 pitches

SEATTLE -- One day after exiting early with left hip tightness, Brendan Donovan was out of the Mariners’ lineup for Saturday’s game against the Rangers as he continues to recover. The third baseman is day to day and is not expected to be considered for the 10-day injured list at

SEATTLE -- Brendan Donovan was removed from the Mariners’ 5-0 loss to the Rangers on Friday to begin the top of the fourth inning, which was revealed postgame to be due to left hip tightness. The third baseman was seen speaking at length with head athletic trainer Kyle Torgerson in

SEATTLE -- Bryce Miller rejoined the Mariners on Friday at T-Mobile Park, where he played catch as part of a final tuneup before beginning a Minor League rehab assignment. That first outing will be Saturday with Triple-A Tacoma, general manager Justin Hollander said before Seattle’s 5-0 loss to Texas.