The Lions announced that they have re-signed running back Zach Zenner. Terms of the deal were not disclosed. 
Zenner, 27 in September, was non-tendered by Detroit. He’s back with the team on a new deal anyway, presumably one that is cheaper than the low level tender of $1.907MM.
The running back originally joined the Lions as an undrafted rookie free agent out of South Dakota State in 2015. In eight games last season, he had 14 carries for 26 yards and one touchdown. He saw the most action of his career in 2016 when he ran for 334 yards off of 88 carries (just 3.8 yards per attempt) and four touchdowns. He also added 18 catches for 196 yards.
The Lions are widely expected to add to their running back group, though they did not sign a new RB in the first couple days of free agency. For now, Ameer Abdullah profiles as Detroit’s top runner with Theo Riddick, Tion Green, and Dwayne Washington in support.
Patricia and Quin really upping their game this offseason.