Seattle Mariners Manager Dan Wilson Highlights Relievers on Roster Bubble

Wilson talked about Casey Legumina and Jesse Hahn as two under-the-radar pitchers that have impressed so far in spring training.

Seattle Mariners pitcher Casey Legumina takes the mound for a game against the Chicago Cubs on March 8 at Sloan Park. | Allan Henry-Imagn Images

PEORIA, Ariz. — Aside from the position battle for second base, the Seattle Mariners bullpen is arguably the most interesting competition in spring training so far.

The Mariners are expected to have Gregory Santos fully healthy after an injury-plagued 2024. Troy Taylor and Matt Brash are also expected to be back early in 2025 after dealing with their own ailments, though they won't be ready at the beginning of the season.

Andres Munoz, Collin Snider, Santos, Trent Thornton and at least one of the lefties (Gabe Speier and Tayler Saucedo) seem like locks, leaving three open spots at the outset of the year.

The Mariners made several low-key moves in the offseason and have a healthy quantity of under-the-radar arms in spring training that could vie for those spots.

Manager Dan Wilson discussed two relievers that have impressed him in a news conference Thursday afternoon at the Peoria Sports Complex.

"We've had a lot of guys get opportunities down here," Wilson said. "And we've seen a lot of good performances. (Casey) Legumina is a guy that has thrown the ball well for us down here. I think Jesse Hahn has done a nice job coming over, as well. Those are a couple of the names that sort of jump out at me. Obviously, there's a lot of good arms in this camp. And getting guys the innings and an opportunity is good. I think guys have taken advantage of that, and those are the guys that have really jumped out to the forefront."

Legumina was acquired by Seattle in a trade with the Cincinnati Reds in return for cash considerations. He's made five appearances in Cactus League play and has posted a 1.80 ERA with four strikeouts in five innings pitched.

Casey Legumina
Sequence and FF x SL Overlay

Casey is a nice addition for the Mariners. His FF was 93.4 last season but his VAA was -4.3 helping generate a 29.5% Chase and 23.7% Whiff on the pitch in AAA.

SL performed very well in AAA as well. Struggled in 9.1 MLB IP. pic.twitter.com/A0go7jLUSo

— Kick Dirt Baseball (@KickDirtBB) February 3, 2025

The Mariners signed Hahn to a minor league contract Nov. 18 after he spent the last month of the season with the organization's Triple-A affiliate, the Tacoma Rainiers. He's also had five outings and has an 11.57 ERA. He's fanned eight batters in 4.2 innings pitched, but has also allowed six earned runs off eight hits.

Seattle won't decide the major league bullpen until the final days of spring training. But there's a chance there will be several new faces at T-Mobile Park in 2025.

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