The Red Sox acquired Willson Contreras from the Cardinals to play first base.
The Boston Red Sox acquired first baseman Willson Contreras in a trade with the St. Louis Cardinals, the second big deal between the teams this winter as the Cardinals rebuild and the Red Sox aim to stay competitive in the cutthroat American League East division.
Contreras, 33, has been one of the steadiest right-handed hitters in baseball since his debut and will bring his well-above-average glove to a position Boston had spent the offseason trying to fill. The Red Sox will receive $8 million to cover the remaining $42.5 million on the three-time All-Star’s contract and sent right-hander Hunter Dobbins and right-handed pitching prospects Yhoiker Fajardo and Blake Aita to the Cardinals.
ESPN.com
Contreras posted very consistent fWARs in his career, with six of his seasons coming in between 2.4 and 2.8 fWAR, overall averaging 2.4 fWAR per season. Most of that comes from his offense, as he posted negative defensive numbers most seasons, including 2025.
I don’t quite see the advantage of this deal compared to sticking with the oft injured Triston Casas. Musings Marcels pegs Cacas at .245/.338/.445 in 2026, Contreras at .254/.345/.443, Cacas at a much lower price tag. If the two wind up platooning, The Red Sox gave up some young talent for a part-time first baseman.
It does look like Contreras might pepper the way at Fenway. Baseball Savant projects Contreras’ hits onto Fenway Park, and it does look like he’ll give the wall a beating.

