Inside The Mariners

Seattle Mariners Bring up Right-Handed Reliever Casey Legumina From Triple-A

The Mariners bolstered their bullpen yet again before a game against the Texas Rangers on Friday.
Seattle Mariners pitcher Casey Legumina steps on the mound during a spring training game against the Chicago Cubs on March 8 at Sloan Park.
Seattle Mariners pitcher Casey Legumina steps on the mound during a spring training game against the Chicago Cubs on March 8 at Sloan Park. | Allan Henry-Imagn Images

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SEATTLE — The Seattle Mariners have made a plethora of roster moves related to their pitching staff in the first two weeks of the season. And that trend continued over the last two days.

The Mariners optioned starting pitcher Luis F. Castillo (not three-time All-Star Luis M. Castillo) to the Triple-A Tacoma Rainiers on their off-day Thursday. Seattle elected to use the extra spot on the roster to bolster their bullpen and recalled right-handed reliever Casey Legumina from the Rainiers before a game against the Texas Rangers on Friday.

Legumina is a relatively new addition to the Mariners organization. He was acquired by the team in a trade with the Cincinnati Reds in return for cash on Feb. 3.

Legumina pitched the entirety of spring training with the major league club. He was one of the team's most impressive relievers in the Cactus League and posted a 3.68 ERA in seven appearances and struck out five batters in 7.1 innings pitched.

Legumina began 2025 with Tacoma and has had four outings with the team. He has a 1.93 ERA and fanned five batters in 4.2 innings pitched. He's allowed just one earned run on four hits in Triple-A this year.

Legumina earned some praise from manager Dan Wilson during spring training.

"We've had a lot of guys get opportunities down here," Wilson said March 13. "And we've seen a lot of good performances. (Casey) Legumina is a guy that has thrown the ball well for us down here."

Seattle has had to shift around the bullpen several times this season due to early pulls in F. Castillo and Emerson Hancock's starts. The Mariners have either used the entire unit or has had at least one reliever go 1.1 innings or longer multiple times.

The 27 year-old Legumina had 17 appearances with the Reds in 2023-24. He has a career 6.95 ERA with 18 strikeouts in 22 innings pitched.

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