Mariners' Steve Cishek: Undergoes hip surgery

Cishek underwent surgery last Wednesday to repair a torn labrum in his left hip.

Analysis:

It's unclear how the injury was sustained, but this is not good news for Cishek or the Mariners. The reliever won't be able to resume baseball activities for 4-to-6 months, which could put his availability for spring training and potentially Opening Day in question. His exact return date will likely become clearer as his rehab progresses.