The Milwaukee Brewers have suffered a major loss as they look to secure their first postseason berth since 2011.

Staff ace Jimmy Nelson will miss the rest of the season with a rotator cuff strain and a partially torn anterior labrum in his right shoulder, the team announced Saturday. It's unclear whether Nelson needs surgery at this point.

Nelson suffered the injury Friday night, when he jammed his shoulder diving back into first base He ripped a long single, took too wide a turn around first base, and had to rush back to the bag.