Mariners' George Kirby to Miss Start of Season with Shoulder Inflammation

The All-Star pitcher will begin the 2025 season on the injured list as the team takes a cautious approach to his recovery.

Seattle Mariners pitcher George Kirby has been diagnosed with right shoulder inflammation and will likely start the season on the 15-day injured list.
An MRI confirmed there is no structural damage, and the team expects the issue to be resolved with rest and recovery.
General Manager Justin Hollander emphasized the decision to sideline Kirby was made with a long-term view of the season in mind, despite Kirby expressing a desire to continue pitching.
Kirby, a former All-Star, has established himself as a key member of the Mariners' rotation, delivering a 3.43 ERA across 511 2/3 innings in his career.
Seattle plans to rely on its existing pitching depth, including Logan Gilbert, Luis Castillo, Bryce Miller, and Bryan Woo, while Kirby recovers.