"He's a quick healer," Bears head coach Lovie Smith said Friday. "We still have time before the game. [But] he hasn't practiced all week."
Briggs hurt his right ankle near the end of the Bears' 23-6 victory over the Carolina Panthers on Sunday.
This would be the fourth game Briggs has missed since entering the NFL in 2003.
Jeff Dickerson covers the Bears for ESPNChicago.com and ESPN 1000.