Tyron Smith is limited in practice

IRVING, Texas -- The Cowboys conducted a full-practice on Tuesday and starting left tackle Tyron Smith was limited with a high ankle sprain.

That appears to be good news for Smith, who suffered the injury on Sunday against Cleveland. Mike Jenkins (back) and Lawrence Vickers (knee) were also limited in practice.

However the Cowboys might be concerned about their starting running back. Felix Jones (knee) missed practice on Tuesday and if he's unable to play Thursday against the Washington Redskins, Lance Dunbar or Phillip Tanner will take over. Both players share first-team reps in practice.

DeMarco Murray (foot), Ryan Cook (knee), Danny McCray (hip), Kevin Ogletree (concussion) and Charlie Peprah (concussion), Jay Ratliff (groin), Phil Costa (ankle) and Sean Lissemore (ankle) did not practice.

Tight end John Phillips (ankle) was a full participant in practice.