Red Sox's Cooper Criswell: Designated for assignment
Rotowire
The Red Sox designated Criswell for assignment Thursday, Chris Cotillo of MassLive.com reports.
The Red Sox re-signed Criswell to a one-year contract in early November, but he'll lose his roster spot less than one month later. He spent the majority of the 2025 season with Triple-A Worcester and should have the chance to contribute as a reliever at some point in 2026 if he sticks with the organization.
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Red Sox's Adonys Guzman: Dealt by Pirates
Rotowire
Guzman was traded along with Johan Oviedo and Tyler Samaniego from the Pirates to the Red Sox in exchange for Jhostynxon Garcia and Jesus Travieso on Thursday, Jeff Passan of ESPN.com reports.
The Pirates selected Guzman with the 144th pick in the 2025 draft, and he profiles as a defensive-minded catcher. He's made only five plate appearances as a pro, so he'll likely begin the 2026 season in the lower levels of the minors.
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Red Sox's Tyler Samaniego: Joining Red Sox
Rotowire
Samaniego was traded along with Johan Oviedo and Adonys Guzman from the Pirates to the Red Sox in exchange for Jhostynxon Garcia and Jesus Travieso on Thursday, Jeff Passan of ESPN.com reports.
The Pirates added Samaniego to the 40-man roster in mid-November, but he'll now try to reach the majors with the Red Sox. He'll be entering his age-27 season and has yet to pitch above Double-A, though he did post a strong 3.08 ERA and 0.92 WHIP across 26.1 innings with Altoona while working exclusively as a reliever. Samaniego is a strong candidate to begin the 2026 season with Triple-A Worcester, but he could provide depth to the Boston bullpen at some point in 2026.
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Red Sox's Johan Oviedo: Headed to Boston
Rotowire
Oviedo was traded from the Pirates to the Red Sox in exchange for Jhostynxon Garcia and Jesus Travieso on Thursday, Jeff Passan of ESPN.com reports. Tyler Samaniego and Adonys Guzman are also going to Boston in the deal.
After acquiring Sonny Gray earlier in the offseason, the Red Sox remained aggressive in upgrading their rotation this winter. Oviedo rehabbed from Tommy John surgery for much of the 2025 season, though he managed to join the Pirates' rotation for the final two months of the campaign. In nine starts, the right-hander managed a 3.57 ERA,1.21 WHIP and 42:23 K:BB across 40.1 frames. Control has been a consistent concern for Oviedo throughout his 361 innings in the big leagues, but he should be a decent back-end starter for the Red Sox.
Red Sox's Vinny Capra: Signs MiLB deal with Red Sox
Rotowire
The Red Sox signed Capra to a minor-league contract Wednesday.
Capra managed just a .125/.157/.177 batting line across 47 contests for the Brewers and White Sox in 2025. The 29-year-old offers plenty of defensive versatility and will give Boston some useful depth at Triple-A Worcester.
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