Herbig (hamstring) is listed as doubtful for Sunday's game against the Lions, Brooke Pryor of ESPN.com reports.
Herbig managed to log a limited practice Friday, but his hamstring injury appears to be severe enough that he'll likely be sidelined for Sunday's contest. With T.J. Watt (calf) already ruled out, rookie fourth-rounder Jack Sawyer would be the top candidate to start at edge rusher opposite Alex Highsmith if Herbig is sidelined for Week 16.