The Facts: Betts, the fill-in for injured Clinton Portis, has been knocked out of the Dallas game because of a left knee injury.
Diehards Line:Betts apparently got hurt on a hard tackle by Bradie James at the end of a 2-yard gain midway through the first quarter Sunday. Team trainers checked Betts’ knee on the sideline, and a few minutes later it was announced he was out for the game. The extent of the injury wasn’t immediately known. Rock Cartwight and Quinton Ganther are next in line with Betts out.