By adding one starting pitcher to their organization Thursday, the Red Sox also lost another — at least temporarily.

To make room on their 40-man roster for new acquisitions Johan Oviedo and Tyler Samaniego from the Pittsburgh Pirates, the Red Sox designated Cooper Criswell for assignment.

Earlier this offseason, prior to the non-tender deadline, the Red Sox had signed Criswell to a unique guaranteed one-year $800,000 contract — a slight reduction in salary from the $1 million he earned in 2025.

After being DFA’d, Criswell, 29, will be exposed to waivers over the next few days. But because the deal is guaranteed, he’s far more likely to clear and elect an outright assignment because his salary is already set.

Additionally, the timing of the move could help the Red Sox control Crisw

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