BOSTON -- The Boston Red Sox signed right-hander Cooper Criswell to a one-year deal, bringing in the former Rays long reliever as a potential arm for the bullpen or rotation.
Criswell, 27, made 10 relief appearances for the Rays last season, including four outings of at least four innings. He was 1-1 with a 5.73 ERA.
Criswell also made one major league appearance in each of the two previous seasons.