Marcelo Mayer is out for the year, eliminating a top-infield prospect from the Boston lineup as the team navigates September. Mayer’s absence narrows the infield upside and pushes veteran depth into more prominent roles for the final weeks.

Mayer’s wrist TFCC surgery ends his current season and shifts his timeline toward spring training, positioning him for 2026 readiness. The move highlights the ripple effect of in-play injuries on the Sox’s prospect pipeline and fantasy implications for Red Sox-related depth.

Mayer injures his right wrist, ending his season after a July tear. A four-year prospect drafted fourth overall in 2021, Mayer debuted in May and split time at short and third, slashing .228 with four homers and 10 RBIs in 44 games. A three-month recovery follows the decision for surgery, with spring training framed as the potential return path.

Marcelo Mayer, Red Sox top infield prospect, will undergo season-ending surgery on his right wrist after a tear persisted through injections. His recovery timeline pushes his MLB arrival back, but the organization remains confident in his future role. Mayer posted a modest 2024 line but is regarded as a cornerstone for Boston’s future, with development and spring readiness emphasized.

Marcelo Mayer, the No. 4 overall pick in 2021, reached Boston in 2025 and slashed .228/.272/.402 with four homers and ten RBIs over 44 games. A right wrist sprain led to a shot of anti-inflammation in August, but surgery ends his season. Mayer remains a cornerstone prospect for the Sox with a bright long-term upside, though the 2025 setback alters the immediate timeline.