Yankees catching coordinator Tanner Swanson leaves to become Mariners bench coach
The gist
Yankees catching coordinator Tanner Swanson is leaving to become the Seattle Mariners' bench coach.
He built the Yankees' pitch-framing reputation and now joins new Seattle manager Jason Kanzler.
How it unfolded
- Nov 6, 2026The Post's Joel Sherman first reports that Swanson is leaving the Yankees to become the Mariners' bench coach; ESPN's Jorge Castillo confirms the move with a source.
- Nov 6, 2026Swanson will serve under Jason Kanzler, who was named Seattle's manager earlier this week.
- Nov 6, 2026The move follows Triple-A manager Shelley Duncan leaving the Yankees for the Red Sox on Wednesday, making Swanson the second coaching-staff loss for New York this week.