The Boston Red Sox are making significant strides to improve their middle infield defense ahead of the 2025 season. The addition of Gold Glove winner Alex Bregman, whether he plays at second base or third, is expected to dramatically enhance fielding performance compared to last year, particularly when compared to Rafael Devers, who has historically struggled with errors. The team's success will largely depend on the health of veteran shortstop Trevor Story, who has struggled to stay on the field since signing in 2022.

Up-and-coming players like Kristian Campbell and Vaughn Grissom are also set to compete for roster spots, with Campbell having had an impressive 2024 season in the minors, while Grissom looks to bounce back from an injury-plagued year. The presence of Bregman complicates their paths, but both players are seen as vital for depth as the team aims for postseason contention.