With Cordarrelle Patterson and Jaylen Warren banged up, Shampklin could operate as the team’s No. 2 running back behind Najee Harris in Week 5 against the Cowboys. Shampklin, an undrafted player out of Harvard in 2022, had one carry for five yards last week against the Colts. Look for Harris to see a heavy workload if Patterson and Warren are once again sidelined in Week 5.

Shampklin will revert to IR, ending his season. The undrafted Harvard back was in the mix for Dallas' RB3 spot before going down, rushing for 106 yards on 28 carries (3.8 YPC) this preseason. With Shampklin out, Rico Dowdle will open the season behind Ezekiel Elliott and Tony Pollard.

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.

Malik Davis started with Dallas resting its first-team offense. Shampklin worked in a committee with Davis and finished as the team's leading rusher. The undrafted Harvard back made a case for a roster spot this preseason, rushing for 106 yards on 28 carries (3.8 YPC). Shampklin is a hedge to the Cowboys' backfield for bettors who don't think Tony Pollard can handle a full workload if Ezekiel Elliott goes down. Dallas will stash one of Shampklin, Davis, or Rico Dowdle on its practice squad.