Michael Lee Fetters (born December 19, 1964) is an American professional baseball coach. He is currently the bullpen coach for the Arizona Diamondbacks of Major League Baseball (MLB). He played in MLB for eight teams during his 16-year career as a pitcher from 1989 to 2004. Fetters started his playing career with the California Angels and also played for the Milwaukee Brewers, Oakland Athletics, Baltimore Orioles, Los Angeles Dodgers, Pittsburgh Pirates, the Diamondbacks, and Minnesota Twins. Fetters had his best season in 1996 when he finished fifth in the American League in saves with 32 with the Brewers. Fetters finished his career with 100 career saves.