(WBBM) – Red flags are rippling more prominently at Bears headquarters, where Pro Bowl linebacker Lance Briggs can only watch practice.

LISTEN: Newsradio’s Josh Liss talks to WBBM Bears Game Day Analyst Tom Thayer

An ankle injury may leave Briggs out this weekend. Brian Iwuh covers for Briggs. But the defensive aim remains the same, stuff a 2-2 Seattle Seahawks team Sunday at Soldier Field.

Briggs got hurt in last Sunday’s game at Carolina and left the game early.

The Bears practice today. Quarterback Jay Cutler continues to practice, feeling healthy after suffering a concussion, the fifth documented concussion of his career, even though he said it was his first. Cutler may be anxious to put the topic of head injuries to rest.