Matt Chapman to Undergo Season-Ending Abdominal Surgery in Philadelphia

San Francisco Giants third baseman Matt Chapman will miss the remainder of the 2026 season following a core muscle injury evaluation by Dr. William C. Meyers.

San Francisco Giants third baseman Matt Chapman is scheduled for season-ending surgery on Tuesday to address a persistent abdominal strain. The 33-year-old infielder concludes his 2026 campaign having appeared in 84 games, where he recorded seven home runs and 42 RBIs. Dr. William C. Meyers conducted a medical evaluation in Philadelphia on Monday, confirming that the five-time Gold Glove winner suffered a core muscle injury necessitating immediate operative repair. Chapman remained in Pennsylvania following the consultation to prepare for the procedure, which was announced shortly before the Giants' series opener against the Houston Astros.

Key details

Statistically, Chapman finishes the year with a .235 batting average across his 311 at-bats. The veteran is currently in the second year of a six-year, $151 million contract extension signed in September 2024, a commitment that binds him to the San Francisco franchise through the 2030 season. Manager Tony Vitello confirmed the surgical timeline at 8:25 PM ET on August 10, 2026, noting that the decision followed a definitive diagnosis of the muscle tear. The loss of the starting third baseman creates a significant defensive void at the hot corner for the final stretch of the regular season.

Simultaneously, the Giants medical staff received MRI results for catcher Daniel Susac, revealing a fracture of the patella in his left knee. The 25-year-old backstop sustained the injury during Sunday’s matchup against the Detroit Tigers when he fouled a pitch directly off his leg. The impact was severe enough to require a motorized cart to transport Susac from the field, and he was later observed by team personnel hobbling significantly in the clubhouse. Vitello characterized the incident as a freak occurrence, noting the rarity of a self-inflicted foul ball resulting in a bone break.

Latest developments

Susac’s path to the Giants roster involved a unique transaction sequence during the previous winter. He was originally selected by the Minnesota Twins from the Oakland Athletics in the Rule 5 draft last December, only to be traded to San Francisco immediately following the selection. The fractured kneecap puts his rookie season on indefinite hold while specialists determine if the bone requires surgical stabilization or can heal through immobilization. The team has not yet provided a specific day-count for his return, though the nature of patellar fractures typically suggests an extended period of inactivity.

The timing of these medical updates coincides with the start of a critical series against Houston. With Chapman sidelined, the Giants lose a player who has been a fixture in the lineup since his arrival. The third baseman’s absence is compounded by the loss of Susac, who provided depth behind the plate. The organization is now tasked with filling two spots on the active roster while their primary infielder recovers from the core muscle repair in Philadelphia.

Dr. Meyers, a renowned specialist in core injuries, will perform the operation on Tuesday morning. The recovery protocol for such abdominal procedures generally involves several months of rehabilitation, effectively ending any possibility of Chapman returning for a potential postseason run. The Giants front office must now navigate the remaining schedule without their $151 million cornerstone, relying on bench depth to cover the defensive responsibilities at third base. The dual blow of losing a veteran leader and a young Rule 5 acquisition in a 24-hour span forces a sudden shift in the team's late-season strategy.