The Cowboys will be limited at running back this Sunday night against the rival Eagles in Philadelphia. As expected, Felix Jones will miss his second straight game with an ankle injury and Tashard Choice is questionable with shoulder and hamstring injuries, which would leave the starting job to rookie DeMarco Murray. Murray ran for a franchise-record 253 yards last week against the Rams. Fellow rookie Phillip Tanner is the only other healthy tailbacks on the 53-man roster, and the Cowboys do not have a running back on the practice squad.