Seattle Mariners Roster Moves 5/21/2025

Seattle Mariners Roster Transactions | Inside The Diamonds

The Seattle Mariners wrap up their series against the Chicago White Sox this afternoon at T-Mobile Park. They are looking to rebound after a narrow 1-0 loss last night. That defeat snapped their four-game winning streak. During that streak, they averaged five runs per game. They gave up just one run per contest. Logan Evans will take the mound for Seattle, making a key start as the Mariners aim to take the series. Shane Smith will oppose him as the starting pitcher for the White Sox.

In a roster move ahead of today’s game, the Mariners selected the contract of Jesse Hahn from Triple-A Tacoma. To make room on the 40-man roster, Seattle designated veteran right-hander Casey Lawrence for assignment. With the AL West race tightening, every game counts. The Mariners aim to bounce back. They plan to continue their strong form. The team takes the field this afternoon for the first pitch.

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Jesse Hahn

Hahn in two games with Seattle this season is 0-1 with a 4.59 FIP, a 1.75 WHIP, and three strikeouts in four innings. In five games at Tacoma, he has yet to allow an earned run. He has allowed one run on five hits, walked three, and struck out five over five innings of work. In 84 big league appearances with 50 of those coming as starts, he is 19-22. Hahn posts a 4.17 ERA, a 1.30 WHIP, and 244 strikeouts in 315.1 innings.

Casey Lawrence

Lawrence this season has spent time between the Mariners and the Toronto Blue Jays. He’s appeared in six games. Lawrence posts a 1-2 record with a 4.08 ERA, 4.11 FIP, 1.53 WHIP, and seven strikeouts over 17.2 innings. At Tacoma, he’s made four appearances—three of them starts—going 0-1 with a 4.91 ERA, 1.57 WHIP, and 13 strikeouts in 14.2 innings.

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