When Corey Clement met Saquon Barkley, he noticed something in his eyes. It was Dec. 3, 2016, and the two running backs were facing off in the Big Ten championship game. Barkley was playing for Penn State and Clement was playing for Wisconsin.

The difference in the outcome this year just might be Philadelphia’s addition of 2,000-yard rusher Saquon Barkley. Barkley has turned the Eagles’ run game from a concern for the opposition through the last decade to a downright fear. Fear that Barkley can score from anywhere. Fear that Barkley can shift momentum at any time.