There appeared to be minimal contact between Griffin and Donatas Motiejunas before Griffin dropped to his hands and knees on his way to the bench after a timeout was called midway through the first quarter Saturday night.
He was clutching his lower back and remained on the court for a couple of minutes before being helped to his feet. He was biting his jersey as he gingerly walked off the court and to the locker room.
Griffin entered the game averaging 24.3 points and 9.8 rebounds.
There was no immediate word from the team on the injury.