Tolbert put his head down and ran into the chest of safety Reggie Nelson during the first quarter of a 34-20 loss on Sunday. Tolbert fumbled and stayed face-down on the field, motionless for several minutes.
Doctors carefully rolled him onto a backboard, strapped him down and wheeled him off the field. He raised his right forearm and gave a thumbs-up sign to the applauding crowd.
Teammates said Tolbert was walking around the locker room after the game.
"He's doing fine," coach Norv Turner said. "He has a sprained shoulder and neck. He's got all the feeling back in his hands. He'll be all right."