Lions' Zach Zenner: Falling behind in job battle

Zenner carried four times for 21 yards during Friday's preseason game against the Bills.

If this game was any indication, Zenner has fallen behind Ty Johnson for the No. 3 role at running back. He still has a solid chance of making the roster, though, as Zenner is a standout on special teams and has proven to be a serviceable option when injuries have forced him into playing time on offense in the past.