Dallas Cowboys DT David Irving (ankle) did not practice Thursday, Jan. 10, and has been ruled out. DT Maliek Collins (illness, ankle), OG Xavier Su’a-Filo (ankle) and FS Darian Thompson (groin) were limited and are questionable. WR Tavon Austin (groin), WR Noah Brown (illness), DE Tyrone Crawford (neck), FS Jeff Heath (wrist), LB Sean Lee (hamstring), OG Zack Martin (knee) and OT Tyron Smith (neck) participated fully.