FRISCO, Texas Dallas left tackle Tyron Smith has been ruled out of the Cowboys game Sunday against Green Bay after spraining an ankle last week against New Orleans https://www.packerssalutetoservice.com/20-Darnell_Savage_Jr.The six-time Pro Bowler will be replaced by Cameron Fleming. Smith missed two games last season with a neck issue as the injuries have piled up on him in recent years. The 28-year-old, who also has battled back issues, hasnt played a full season since 2015.Smith was the only player who didnt practice all week among several Cowboys trying to return from injuries Jon Runyan T-Shirt. Four are listed as questionable right tackle Lael Collins, receiver Michael Gallup and defensive linemen Tyrone Crawford and Antwaun Woods. Collins was limited in practice Friday after missing two days with a back problem that cropped up this week. Gallup could return after missing two weeks following arthroscopic knee surgery. He was the teamleading receiver when he was injured in Week 2 at Washington.Crawford said he was expecting to return against the Packers after missing two weeks with a hip injury that he also dealt with in the offseason. Woods injured a knee against the Redskins.