PHILADELPHIA -- There was a time, Philadelphia Eagles running back Saquon Barkley said, when he would see clips of Derrick Henry running hills or Christian McCaffrey working out and feel compelled to spring into action to keep pace, thinking, "I've got to go."

Saquon Barkley Believes He's Entering Prime With Eagles originally appeared on Athlon Sports. The shelf life of a running back in the NFL is very short compared to other positions in the league.

Why Eagles RB Saquon Barkley said he can be even better than he was last season, when he rushed for 2,005 yards