ALLEN PARK, Mich. (AP) — The Detroit Lions waived running back Zach Zenner from the reserve-injured list.
Detroit made the move Wednesday as it prepared to play at San Francisco.
Zenner hurt his back against Cleveland in the preseason finale.
He earned a spot on the Lions’ roster as an undrafted rookie in 2015. He emerged as Detroit’s No. 1 running back in 2016 when he closed the regular season with more than 200 yards of offense over the last two games.