The Rockies have left pitcher Jorge De La Rosa off their NLDS roster because of an injured left groin. The left-hander left his start on Saturday because of the injury. "Our medical people had been working on him over the last couple days and his groin is about the same as it was when we had to remove him from the game Saturday night in Los Angeles," Rockies manager Jim Tracy told the Associated Press. If the Rockies eliminate the defending World Series champion Phillies, De La Rosa could return for the NLCS.