Dallas Cowboys cornerback Morris Claiborne did not practice with what is being reported as a concussion, as seven players total officially missed Dallas's practice on Wednesday. Claiborne left Sunday's win over the Cincinnati Bengals after having his helmet knocked off in a collision with several players on the sidelines, and did not return.

Also missing practice were running back DeMarco Murray and linebacker DeMarcus Ware. Murray has been held of out Wednesday practices since returned from injury as he continues to rehab an injured foot. Ware is battling through elbow and shoulder injuries that have kept the veteran out of practices at various times this season.

Starting left guard Nate Livings, playing in his first game against his former team, also suffered a concussion against the Bengals and did not practice. Nose tackle Jay Ratliff, who has missed considerable time this season, did not practice due to his injured groin while reserve safety Charlie Prepah also remained out.

Receiver Dez Bryant, who is hoping to play on Sunday against the Steelers with a broken left index finger, did not practice.