Warren has ankle injury

FOXBOROUGH, Mass. -- Patriots defensive end Ty Warren injured his right ankle while tackling Panthers running back DeAngelo Williams early in the fourth quarter. His return is questionable.

Warren stayed on the ground after making the tackle and was attended to by trainers before walking off under his own power. Trainers taped his ankle and he was walking around trying to test out the injury on the sideline.

Warren missed time earlier this season because of an ankle injury.