Mets pitching prospect Jenrry Mejia appears headed for Tommy John surgery that will sideline him for a year. Mejia, 21, made the Opening Day roster last season as a reliever. He has a complete tear of the medial collateral ligament in his right elbow. He was examined Monday in New York by Mets doctor David Altchek, who recommended surgery. Mejia departed after four innings Friday in his latest start for Triple-A Buffalo, although his pitch count was already at 81 and there were no outward signs of trouble. "I felt a little pain on one pitch ... late in the game, in the fourth inning," Mejia said Monday.