Cowboys RB Aaron Shampklin suffered an ankle injury in the fourth quarter of Friday’s preseason finale against Seattle.
Shampklin subbed in on the first series for Dallas and played into the second half, getting injured on the final drive of the night. The undrafted rookie had to be helped to the sideline and was unable to walk under his own power. Shampklin, who was competing with Rico Dowdle and Malik Davis for the RB3 spot, was one of the standouts for Dallas this summer before going down. The Cowboys could stash Shampklin on IR if he makes their roster, sidelining him at least four weeks. Shampklin would miss the entire season if he goes on IR before final cuts.