The Yankees completed a sweep of the Astros on Sunday but may have lost their number one starter in the process, according to The New York Times. Chien-Ming Wang hurt his foot while running from second base to home plate in the top of the sixth inning. He told reporters afterward that he heard a pop, which could indicate a season-ending ligament injury. ?That?s a manager?s worst nightmare,? Joe Girardi said. ?Pitchers on the basepaths.? He will have an MRI on Monday to determine the damage.