One day after pitching just an inning in the Houston Astros' game with the Washington Nationals, Roy Oswalt reported that he was sore on Saturday - and he doesn't know when he'll pitch again. Oswalt left Friday night's game when his left hip began bothering him. He hadn't pitched since June 30. "Sore today," Oswalt said. There were no immediate plans to place Oswalt, who is 7-8 with a 4.56 ERA, on the disabled list, manager Cecil Cooper said. ...