Cowboys right tackle Zack Martin has been ruled out of the team'sThanksgiving matchup vs. Washingtonwith a calf injury.Martin Allen Robinson Jersey went down on Dallas' first drive of the game, grasping his left knee area, and was immediately helped off the field with trainers. Dallas ruled Los Angeles Rams Home Office him out almost immediately after he appeared to aggravatean injury he suffered in weeks prior.Cowboys RT Zack Martin has a calf injury. Apparent aggravation of what he sustained about 10 days ago. He is out for the game. Michael Gehlken (@GehlkenNFL) Martin's injury was the second to Dallas' O-line early in the game. Left tackle Cam Erving was questionable to return with a right knee injury.Zack Martin injury is a calf injury (not a knee injury). Out Matt Gay Jersey remainder of game. LT Cam Erving (right knee) was examined in training room. He has returned to bench with a brace Taylor Rapp Jersey on knee; not sure yet if he will be able to return to game KristiCowboySideline (@KristiCowboy) COWBOYS-WASHINGTON: Dallas has had major injuries along the offensive line this season. Franchise left tackle Tyron Smith is out for the year with a neck injury. Rookie center Tyler Biadasz is expected to return from injured reserve in Week 14.Dallas' defense gave up a touchdownto Washington soon after Martin's injury, putting the Cowboys down 7-3 in the first Jordan Fuller Jersey quarter.