The Mets aren’t done making moves yet.
Although it was a smaller deal compared to the Mets’ flurry of acquisitions over the past week, the Mets sent pitcher Cooper Criswell to the Mariners in exchange for cash. Seattle announced this on Friday.
Criswell was assigned for assignment on Wednesday.
The 29-year-old right-hander, who was used as a swingman by the Red Sox last season, was first selected off waivers by the Mets from Boston in December in a move initially seen as a way to increase the team’s pitching depth.
To make room on their roster, Seattle selected left-handed pitcher Jhonathan Diaz, who played just once for the Mariners last season.
Criswell spent his 2025 season in both Boston and as a member of Triple-A Worcester, where he pitched to a 3.70 ERA with 68 strikeouts in 65â…” innings.
He also saw success during his brief stint in the major leagues last year, posting a 3.57 ERA over seven appearances with the Red Sox.
After being selected in the 13th round of the 2018 MLB Draft, Criswell has spent five seasons in the Majors, posting a career 4.48 ERA in 154â…” innings pitched.
In addition to spending the 2024 and ’25 seasons in Boston, Criswell also pitched for the Rays and Angels during his career.
Criswell was then DFA’d by the Mets to open up a spot on the team’s 40-man roster following the trade for Freddy Peralta from the Brewers.
Mets President of Baseball Operations David Stearns – who previously served as general manager of the Brewers – said he is confident Peralta will be a consistent starter next season.
“Freddy has clearly established himself over the last few years as one of the best starters in baseball, one of the most consistent starters in baseball,” Stearns said Thursday during a video call from Citi Field. “He is a player I know well.
“A player I trust. A player who I think will fit very well with the organization, the team and our city.”
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