Dallas Cowboys CB Morris Claiborne (groin), DT Tyrone Crawford (hamstring, shoulder), LB Justin Durant (elbow), DE Demarcus Lawrence (back), DT Terrell McClain (ankle), OT Tyron Smith (knee) and DT Cedric Thornton (ankle) have been ruled out for Week 17. CB Anthony Brown (concussion), DE Jack Crawford (foot), DE Randy Gregory (abdomen), OG Ronald Leary (back) and LB Sean Lee (back) are listed as questionable. Gregory fully participated in practice Friday, Dec. 30. Jack Crawford and Lee were limited during practice, while the other players missed practice.