Gafford suffered the injury early in the first quarter when he deflected a pass, relays K.C. Johnson of NBC Sports Chicago. The thumb appeared to bend backward, and Gafford ran straight to the training room.
Gafford is averaging 4.9 points and 2.5 rebounds in limited playing time through 31 games, but he has taken over a starting role since the loss of Wendell Carter Jr., who is out for four to six weeks with a sprained right ankle. Gafford has been excelling on defense, with a streak of 12 straight games with a blocked shot coming into tonight.