Lance Briggs went down during Chicago’s game against the Carolina Panthers last Sunday, re-aggravating a high ankle sprain suffered before the season. The Bears linebacker is uncertain for this week’s matchup against the Seattle Seahawks after leaving the stadium in a walking boot last week.

Lance Briggs left the locker room after Sunday’s game wearing a walking boot on his left ankle, casting doubt about his availability for this weekend’s game.

Briggs aggravated a high-ankle sprain he first suffered in the third preseason game while stuffing Panthers running back Jonathan Stewart late in the third quarter.