Cooper Criswell

The Boston Red Sox signed Cooper Criswell to a one-year, $800,000 contract on Thursday. Criswell, 29, appeared in seven games for Boston during the 2025 regular season, posting a 3.57 ERA and 1.58 WHIP over 17.2 innings.

Fantasy Impact

The right-hander does not have any minor-league options remaining, meaning he will need to secure a spot on the Red Sox's Opening Day roster to avoid losing his 40-man spot. His 2025 season ended in late August due to elbow inflammation. He also registered a 3.70 ERA and 1.35 WHIP at Triple-A Worcester.

The Red Sox have optioned right-hander Cooper Criswell to Triple-A Worcester.

Fantasy Impact

Criswell stepped up and hurled seven innings of one-run ball in an eventual 2-1 win over the Astros on Friday, but was sent down to make roster space for trade acquisition Dustin May on Saturday. The 29-year-old owns a 3.57 ERA in 17 2/3 innings for the Red Sox this season and a 3.32 ERA in 14 outings (13 starts) for Worcester.

Cooper Criswell allowed one earned run on seven hits and two walks while striking out four over seven innings in Friday's win against the Astros.

Fantasy Impact

The right-hander continues a reliable stretch in limited outings on the mound of late, allowing one run or less in each of his four appearances for the Red Sox. After yesterday’s performance, Criswell now has a 3.57 ERA and 1.58 WHIP, along with a 1-0 record across two starts this season.

The Red Sox recalled RHP Cooper Criswell from Triple-A Worcester.

Fantasy Impact

Criswell will add a fresh arm in the bullpen for Boston. Richard Fitts was optioned as the corresponding move.

Cooper Criswell will be called up as the 27th man in Game 2 for the Red Sox on Wednesday against the Reds.

Fantasy Impact

The Red Sox and Reds will first finish their game from Tuesday. Criswell will then add an extra arm in the bullpen for Boston in Game 2.