From chicagoblackhawks.com; (link)

The Chicago Blackhawks announced today that right wing Marian Hossa underwent successful shoulder surgery to repair a small tear in his right rotator cuff. The surgery was performed by Blackhawks Head Team Physician Dr. Michael Terry.

“Marian’s surgery today went as well as we had hoped and he is right on track for the anticipated recovery we had planned on, which is approximately four months,” Terry said.