Following the trade acquisition of Willson Contreras from the St. Louis Cardinals—in exchange for pitchers Hunter Dobbins, Yhoiker Fajardo, and Blake Aita plus $8 million—the Boston Red Sox gain a stabilizing force at first base and DH. Contreras' blend of offensive consistency, advanced contact quality, and defensive reliability addresses years of injuries and underperformance at the position.
Boston's first base has been unstable since Triston Casas' promising 2023 rookie year (.856 OPS, 24 HR), with injuries limiting him to 92 games over the next two seasons, culminating in a season-ending left patellar tendon rupture in May. Prior to Casas, Hanley Ramirez was the last Red Sox first baseman with an above-average OPS+ (126 in 2016).
Contreras, a 2016 Cubs debutant who helped end their 108-year World Series drought, shifted to first base after catching duties. He boasts 172 career home runs and an OPS+ from 106-138 in every season but 2018, plus 30 postseason games for high-pressure experience suiting Fenway's intensity.
Advanced metrics from his latest season highlight his quality: expected batting average .260, expected slugging .481, expected wOBA .358, 49% hard-hit rate, 13.9% barrel rate, and 76 mph bat speed (95th percentile). Transitioning from neutral Busch Stadium (park factor 100) to hitter-friendly Fenway (104, MLB's second-highest) favors his pull power—19.8% pulled air balls last year (up from 15.1%), with 15 of 20 homers to left.
Defensively, he posted arm strength of 88.2 mph (76th percentile), easing his fit in Boston's historic park.