Running back DeMarco Murray didn't practice again Thursday, though he did do some rehab work on the side. It is unlikely he will play Sunday against the Browns.
The Cowboys still were without their top two centers. Phil Costa (ankle) still is rehabbing, and Ryan Cook (knee) missed a second consecutive day though he expects to play Sunday. Right guard Mackenzy Bernadeau and Kevin Kowalski, who would have to be activated to the 53-player roster by Saturday, are working at center.
Cornerback Mike Jenkins (back), safety Matt Johnson (hamstring) and defensive lineman Sean Lissemore (ankle) also sat out.
Fullback Lawrence Vickers (knee), who missed Wednesday's practice, was limited as was tight end John Phillips, who was added to the injury report Thursday with an ankle injury.
Linebacker Dan Connor (neck) and defensive tackle Jay Ratliff (ankle) were full participants.