Red Sox acquire veteran slugger to fill vacancy at first base

Chicago Cubs former left fielder Garrett Cooper.

The Red Sox have acquired first baseman Garrett Cooper, the Miami Herald’s Craig Mish writes. MassLive.com’s Chris Cotillo reported Saturday afternoon that the Sox were “closing in on” a deal for Cooper’s services, and Cotillo and Sean McAdam report that the Cubs will receive cash considerations in return.

Chicago designated Cooper for assignment earlier this week, and today’s trade officially ends Cooper’s time in Wrigleyville after 12 games and 41 plate appearances.  Cooper signed a minor league deal with the Cubs during the offseason and made the Opening Day roster, then hit a respectable .270/.341/.432 with one home run over those 41 PA.

The Cubs intended to use Cooper as a veteran complement to Michael Busch at first base, but Busch has hit so well that the Cubs simply couldn’t take him out of the lineup, limiting Cooper’s playing time to mostly DH and pinch-hitting work.  Cooper was also DFA’ed so Chicago could add Matt Mervis to the active roster, as Mervis was on such a heater at Triple-A that the Cubs wanted to give him more of a look in their lineup, leaving Cooper as even more of an odd man out.

While Cooper’s avenues to playing time were closed off in Chicago, the Red Sox had an unwelcome vacancy created at first base when Triston Casas went on the 15-day IL.  Casas’ recovery timeline is still very fluid, as Casas stated that estimates have ranged from 3-9 weeks.  Boston had an interest in Cooper in January when he was still a free agent, and the Sox have now finally landed their man, perhaps a few months later than expected.

Over eight MLB seasons, Cooper has hit .268/.337/.435 over 1854 career plate appearances, with 57 home runs.  Translating to a 111 wRC+, Cooper tended to fly under the radar as a member of a rebuilding Marlins team for much of his career, and his playing time was further limited by injuries.  He even made the All-Star team in 2022, though Cooper’s production dipped to a modest .251/.304/.419 over 457 combined PA with Miami and San Diego in 2023.

Cooper made a pair of appearances in left field for the Cubs this season, marking his first bit of outfield work since 2021. While not a versatile player, Cooper can at least chip in as an outfielder in a pinch, extending his value to the Red Sox even after Casas eventually returns. With Cooper now on the roster, Bobby Dalbec (acting as the interim first baseman) is probably getting sent back to Triple-A, as Dalbec has struggled badly at the plate this season.

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