Cooper Criswell
SP,RP - New York Mets
2026 Outlook
Roster %
Eligibility
Availability
The New York Mets have claimed RHP Cooper Criswell off waivers from the Boston Red Sox
Fantasy Impact
Criswell has found a new home with the New York Mets, who claimed him off waivers after he was designated for assignment by Boston on Thursday. The move followed a five-player trade involving the Pittsburgh Pirates. Last season, Criswell made seven appearances for Boston, posting a 3.57 ERA and 1.57 WHIP.
The Red Sox designated RHP Cooper Criswell for assignment.
Fantasy Impact
Criswell loses his roster spot following a trade made by Boston on Thursday. He could draw some interest from other teams on waivers.
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.
