Before getting into the injury report, one other housekeeping note. Josh Brent was moved off the roster (non-football injury) and the Cowboys signed another street free-agent, Brian Schaefering. He played for Rob Ryan in Cleveland, so should know the defense and could contribute right away if Jay Ratliff can't go.
Speaking of Ratliff, he didn't practice today. Of course, Dez Bryant was out. DeMarcus Ware, who banged up his elbow towards the end of the Bengals game, also sat out. Two Cowboys are suffering from concussions, Morris Claiborne and Nate Livings. That's why Derrick Dockery had to play some at the end of the Bengals game. DeMarco Murray probably won't practice for a while, but he's making a difference in games.
Full Cowboys and Steelers injury report.
DID NOT PARTICIPATE IN PRACTICE WR Dez Bryant (finger), CB Morris Claiborne (concussion), G Nate Livings (concussion), RB DeMarco Murray (foot), S Charlie Peprah (foot), DT Jay Ratliff (groin), LB DeMarcus Ware (elbow)
FULL PARTICIPATION IN PRACTICE G Ryan Cook (knee), RB Felix Jones (knee), T Tyron Smith (ankle)
DID NOT PARTICIPATE IN PRACTICE T Mike Adams (ankle), CB Cortez Allen (groin), T Willie Colon (knee), LB James Harrison (illness), CB Keenan Lewis (hip), S Troy Polamalu (not injury related), WR Emmanuel Sanders (shoulder), CB Ivan Taylor (ankle)
FULL PARTICIPATION IN PRACTICE LB LaMarr Woodley (ankle)