Mariano Rivera will have surgery on his injured right knee on June 12. The surgery will be performed by Dr. David Altchek, team physician for the Mets, and the Yankees closer expects to be ready to pitch again by the start of next season. "Oh yeah, there's no doubt about that, God willing," Rivera said. The 42-year-old tore the ACL and damaged the meniscus in his right knee while shagging fly balls in the outfield May 3 before a game in Kansas City.