Johnny O’Bryant has sustained a grade III sprain of the medial collateral ligament (MCL).

O’Bryant initially suffered the injury in the third quarter of Milwaukee’s game at Detroit on Oct. 9.

No surgery is required, and O’Bryant has already begun the rehabilitation process. No timetable has been set for his return.

O’Bryant had appeared in two preseason games for the Bucks and posted two points and three rebounds in 14 total minutes of action.