Jorge Posada says he's prepared to catch for the Yankees if the team needs him to do so. Russell Martin has been limited lately due to back issues, forcing New York to start Francisco Cervelli at catcher. "If the team needs me, yeah, I'll be there. It's always fun. I always love playing behind the plate," Posada said. The situation appears unlikely, however, as Yankees manager Joe Girardi said that Posada would only be used at the position as an "emergency guy."