Demin (undisclosed) exited to the locker room in the second quarter of Tuesday's game against the Celtics, Sharif Phillips-Keaton of USA Today reports.
Demin hasn't had a good night, though it got even worse after he was seen limping off the floor with 2:22 left in the first half. If the second-year guard can't return, it should mean more minutes for Mikel Brown and Keon Ellis.