Oakland second baseman Mark Ellis will not play this season after tests revealed he has a torn labrum in addition to the separated right shoulder he suffered in a collision with shortstop Bobby Crosby.
Ellis was injured in Oakland's spring training game against the Cubs on Thursday. He was diving for a grounder hit by Sammy Sosa that turned into a go-ahead RBI double.
Backup infielder Frank Menechino is nursing a leg injury, but A's general manager Billy Beane is likely to let Menechino have Ellis' job.
Esteban German also is considered an option to play second.
Information from The Associated Press was used in this report.