Allen Park — Three Lions players were surprise additions to the injury report Thursday, and at least one of them is in danger of missing Sunday's game.
Running back Theo Riddick, who was limited Thursday with a groin injury, did not practice Friday and is questionable for Sunday's game against the Bears (1 p.m., FOX).
Tight end Eric Ebron (knee) was limited all week, and although it looked like he might return after missing Week 5, the Lions have already ruled him out for Sunday.
Besides Riddick, defensive tackle Haloti Ngata (calf) and linebacker DeAndre Levy (hip) were the only players absent Friday, and they're both out.