http://msn.foxsports.com/nfl/story/5900144 Mungro, a short-yardage specialist who has scored 13 touchdowns in four seasons with the Colts, was placed on injured reserve Wednesday with what coach Tony Dungy said was a torn anterior cruciate ligament in his right knee. "Don't know when they're going to do the surgery but at some point that's just going to be necessary," Dungy said. Mungro also played on special teams for the Colts, and Dungy said he was uncertain how to replace him. "He was our third back and was a very good runner, a guy that could go in and play tailback and win games for us," Dungy said. "He was a very good special teams player for us. So somebody's going to have to step into that role."