The Seattle Mariners acquired right-hander Cooper Criswell from the New York Mets on Friday for cash, and designated left-hander Jhonathan Diaz for assignment.

Criswell, 29, appeared in seven games for Boston last season, going 1-0 with a 3.57 ERA. He was claimed off waivers by the New York Mets on Dec. 5 and designated for assignment Wednesday.