The Seattle Mariners have added Tanner Swanson to their coaching staff, bringing the former New York Yankees major league field coordinator and director of catching back to the organization. Swanson, who oversaw catchers during spring training workouts at George M. Steinbrenner Field on February 14, 2025, joins the Mariners in a coaching capacity.
The move was reported by SB Nation's Kate Preusser on November 6, 2026, marking a return for Swanson to the Pacific Northwest.
