Mariners Acquire RHP Cooper Criswell, Eyeing Versatile Role After Mets Trade

The Seattle Mariners acquired RHP Cooper Criswell from the Mets for cash. Criswell, 29, was DFA'd by the Mets to make room for Freddy Peralta, having been claimed from the Red Sox in December. Out of options, he pitched 7 MLB games for Boston in 2025 (3.57 ERA) before an elbow injury, and had a 4.08 ERA in 26 appearances in 2024. With a career 4.48 ERA, Criswell offers a low arm slot and four pitches, including a high-break sweeper. Seattle plans to utilize his versatility as a depth starter or potential "wipeout sweeper reliever."