Semaj Christon suffered a concussion after hitting hit head on the knee of Enes Kanter in the third quarter of Oklahoma City's win over the Nets.
Christon is currently in the concussion protocol and has a non-displaced left facial fracture. Christon can play with the fracture when he returns from concussion protocol as long as he plays with a protective mask.
There is no timetable yet for Christon's return.
The Thunder has been using Victor Oladipo alongside Christon in second-unit lineups, and Oladipo is capable of playing point guard.
Oklahoma City has been without Cameron Payne to start the season.