The Cowboys played without two starting offensive linemen last week. They hope not to play without three this week.
Martin was limited Wednesday and did not practice Thursday. Collins and Smith sat out Wednesday before returning in a limited capacity Thursday.
The Cowboys missed Smith and Collins last week in the loss to the Jets. Smith also sat out the Week Five loss to the Packers, and Collins played only 44 of 71 offensive snaps.
Dallas ruled out cornerback Anthony Brown (hamstring).