With Felix Jones still out of practice and expected to not make the trip to Philadelphia, and Tashard Choice appearing limited on Friday, the Cowboys may be down to only two running backs against the Eagles on Sunday night.
Choice wore sweat pants and did not have his helmet at Friday's session, just five days removed from suffering a dislocated shoulder against St. Louis on only his second carry. He had been listed as limited in practice both Wednesday and Thursday.
If he cannot play Sunday, the Cowboys would divide the running back workload between two rookies, DeMarco Murray and Phillip Tanner.
The team does not have a running back on the practice squad, and would be unlikely to sign an extra one to the roster for the game.
Choice would seem likely to be listed as questionable on the week's final injury report, which comes out Friday afternoon.