LOS ANGELES -- Los Angeles Dodgers pitcher Josh Beckett threw a short bullpen session Sunday and remains a possibility to make his season debut and start the team's game against the Detroit Tigers on Wednesday.Beckett had a setback in his final rehabilitation start Friday when he sprained his ankle fielding a bunt. He has been working his way back from a rare surgery which removed an upper rib that was putting pressure on a nerve and causing tingling in his arm and fingers.