The Cowboys have signed 24-year old RB Chauncey Washington to the practice squad.  Washington played in 6 games (0 starts) for the Jags last season and he carried the ball 4 times for 9 yards (2.3 ypc).  He also caught 1 pass for 9 yards last season.  The Cowboys signed Washington to give them even more depth at running back in case Marion Barber has to miss some time due to injury.