Jeff Criswell, the right-handed relief pitcher for the Colorado Rockies, is set to undergo Tommy John surgery, which will sideline him for the entire 2025 season. The announcement comes just a week before his 26th birthday. Scheduled for March 14, the procedure will be carried out by Dr. Keith Meister, a well-known surgeon among major league teams. This development is a significant loss for the Rockies, as Criswell debuted in the 2024 season with a promising performance, posting a 2.75 ERA across 13 appearances.

His surgery means that the Rockies may need to reassess their bullpen strategy, especially after placing veteran Justin Lawrence on waivers. The absence of Criswell may open opportunities for younger arms within the organization. The Rockies acquired Criswell in a trade with the Oakland Athletics in December 2022, and they were counting on him to contribute significantly in the upcoming season.