The Mariners bolstered their roster with the waiver claim of left-handed reliever Austin Kitchen from the Marlins. To make space, Jason Vosler was designated for assignment. Kitchen has experience in Triple-A, totaling 40.1 innings with a combined ERA of 3.35. Notably, his slider showed promise with a 35.7% strikeout rate in Triple-A, though he struggles against major league competition, evidenced by a 14.14 ERA over his brief stint with the Marlins.