Andrés Muñoz Shows Progress With Improved Changeup in 2026

Seattle Mariners reliever Andrés Muñoz has experienced a rocky 2026 season overall, but a notable bright spot has been the development of an improved and virtually un-hittable changeup. As the Mariners fight through a tough stretch in their schedule—including a recent 6-4 loss to the Los Angeles Angels—Muñoz continues to refine his secondary offerings to anchor the back end of Seattle's bullpen down the stretch of the regular season.