Relief pitcher Brian Fuentes told his hometown newspaper Wednesday he has decided to retire. The left-hander posted a 7.20 ERA in 32 appearances between the A's and Cardinals last season. "I've had a great career," Fuentes told the Merced Sun-Star. "I never dreamed I'd have had the opportunities or some of the successes that I've had. I'm very grateful for my peers and the friendships that I've made."