TheMariners placedEvans (elbow) on the 60-day injured list Monday.

The transaction clears a spot on the 40-man roster for the arrival of Josh Simpson, who was acquired via trade with the Marlins on Monday. Evans will miss the entire 2026 season after undergoing UCL reconstruction surgery with an internal brace in January.

TheMariners acquiredSimpson from the Marlins on Monday in exchange for cash considerations.

Simpson reached the big leagues for the first time in 2025 but was unable to work his way into a high-leverage role with Miami after submitting a 7.34 ERA and 1.83 WHIP in 30.2 innings. The southpaw yielded five home runs over 31 appearances and walked 14.6 percent of the batters he faced, but he generated ground balls at a high rate (59.6 percent) and struck out hitters at a decent clip (23.8 percent). Seattle recognized enough potential in Simpson to bring him aboard as an extra left-handed option out of the bullpen and opened up a 40-man roster spot for him by placing Logan Evans (elbow) on the 60-day injured list.

Miller said Monday that he hasn't dealt with any discomfort in his right elbow this offseason and the elbow "feels 100 percent" early in spring training, Daniel Kramer of MLB.com reports.

Miller had two stints on the injured list last season due to a bone spur in his right elbow, but after a consultation this offseason with Dr. Keith Meister, the 27-year-old was able to avoid surgery. Though the elbow could give him trouble again at some point during the upcoming season, Miller looks to be in a good spot on the health front for the time being. He'll be looking to bounce back in 2026 after collecting a 5.68 ERA and 74:34 K:BB over 90.1 innings during the regular season in 2025.

Anderson has impressed early in spring training and is expected to advance quickly through theMariners system, Ryan Divish of The Seattle Times reports.

Anderson has yet to make his professional debut since being selected with the No. 3 overall pick in the 2025 First-Year Player Draft, but the left-hander is already receiving rave reviews following his performance Sunday during a live batting practice session against some Mariners regulars. Anderson is likely to begin the upcoming season with High-A Everett, though he's not expected to "spend a heck of a lot of time in the high minors," according to Jerry Dipoto, the Mariners' president of baseball operations. Seattle's rotation is one of the league's best, and while Anderson still has a lot to prove, he could have an outside chance at making his MLB debut at some point in 2026.

Sloan (eye) threw a live batting practice session Sunday, Daniel Kramer of MLB.com reports.

Despite having yet to pitch above the High-A level, Sloan didn't look out of place while facing off against some of theMariners' top hitters in Cal Raleigh, Randy Arozarena and Josh Naylor during the BP session. According to Ryan Divish of The Seattle Times, the 20-year-old righty sported a four-seamer that hit 99 miles per hour and a two-seamer that reached 98 mph. Sloan missed the final month of the 2025 campaign after undergoing a procedure on his eye, but he's seemingly free of restrictions heading into 2026 and could establish himself as one of the game's top pitching prospects if health prevails this season.

Bliss (knee/biceps) went through a full infield workout and was scheduled to hit Thursday inMariners camp, Daniel Kramer of MLB.com reports.

Bliss missed virtually all of the 2025 season, first due to April biceps surgery and later a September meniscus tear. However, it would seem he has been cleared to participate fully at the beginning of spring training. The 26-year-old is theoretically in the mix for the second-base job, but it's likely he will begin the season at Triple-A Tacoma as he knocks off some rust.

Diaz was added to theMariners' spring training roster as a non-roster invitee.

Diaz was designated for assignment and outrighted to Triple-A in January, when the Mariners acquired Cooper Criswell. The left-hander will likely be a depth option for Seattle's bullpen this season, although he isn't guaranteed a spot on the Opening Day roster. He made just one big-league appearance in 2025.

Joe agreed to a minor-league contract with theMariners on Tuesday that includes an invite to big-league spring training.

Joe split last season between San Diego and Cincinnati, posting a .186/.262/.243 slash line in 42 games before being outrighted off the Reds' 40-man roster in August. The 33-year-old offers some defensive versatility but is likely a longshot to make Seattle's Opening Day roster.

TheMariners could giveEmerson more seasoning at Triple-A Tacoma following the acquisition of Brendan Donovan, Daniel Kramer of MLB.com reports.

Emerson will compete with Cole Young for a spot in the Mariners' lineup, but Young is considered the heavy favorite for the second-base job entering camp. The 20-year-old Emerson reached Tacoma in 2025, finishing with a .285/.383/.458 batting line with 16 home runs and 14 stolen bases over 130 games covering three levels of the minors. He should get an opportunity at the big-league level at some point during the 2026 campaign.

Young "would have to struggle mightily to lose his grip on the second-base job," Daniel Kramer of MLB.com reports.

New acquisition Brendan Donovan's primary position has been second base, but he will enter spring training slated to see most of his action in 2026 at third base. Young put up just a .607 OPS in 257 plate appearances during his rookie season, but he is only 22 and theMariners remain high on his long-term potential. If Young stumbles, Seattle could consider shifting Donovan over to second base and installing Colt Emerson at the hot corner.

TheMariners tentatively plan forDonovan to be their primary third baseman in 2026 but will move him around the diamond based on matchups, Daniel Kramer of MLB.com reports.

Cole Young is the favorite to start at second base, though if Colt Emerson outplays him in spring training, the Mariners could go with Emerson at third base and Donovan at second. Donovan is also expected to bat leadoff against both righties and lefties. Acquired from the Cardinals in a trade earlier this week, Donovan sported a .287/.353/.422 batting line with 10 home runs and 32 doubles over 118 contests last season.

Hancock will enter spring training as a starting pitcher, Adam Jude of the Seattle Times reports.

Hancock was moved to the bullpen last August, but with Logan Evans (elbow) out for the season, theMariners want to have Hancock available to start, if needed. If the Mariners' rotation is healthy on Opening Day, Hancock will likely shift back to a relief role. He allowed four runs (two earned) with a 4:1 K:BB over 8.2 innings as a reliever in 2025.

TheMariners acquiredDonovan from the Cardinals on Monday as part of a three-team deal involving the Rays, Katie Woo of The Athletic reports.

The Cardinals will receive Jurrangelo Cijntje and Tai Peete from the Mariners and Colton Ledbetter and a compensatory draft pick from the Rays. Ben Williamson will go to Tampa Bay. Second base is Donovan's primary position, but he is also an option to see playing time at third base for Seattle and is a good bet to bat leadoff. Donovan slashed .287/.353/.422 with 10 homers over 118 contests for the Cardinals in 2025 and is under team control through the 2027 campaign.

Mariners general manager Justin Hollander said Sunday that he expectsRaley to start against most right-hander this season, Adam Jude of the Seattle Times reports.

Hollander does not anticipate a "hardcore platoon" in right field and designated hitter, but as a "baseline," he expects left-handed hitters Raley and Dominic Canzone to play against most righties and right-handed hitters Victor Robles and Rob Refsnyder to start versus most lefties. Raley collected a disappointing .202/.319/.311 batting line during the 2025 regular season, but he slashed .242/.333/.453 versus right-handers.