The injury won't require surgery, Breer reported, but it will strip Chicago of its most experienced linebacker.
Briggs goes on the shelf one week after middle linebacker D.J. Williams was placed on injured reserve with a torn left pectoral muscle. Promising rookie Jon Bostic stepped in for Williams on Sunday and a combination of Khaseem Greene and Blake Costanzo will see increased time in the Will linebacker role vacated by Briggs.
Greene and Bostic, a pair of newbies, would have been eased into action in a perfect world, but that's not how it's played out this season in the Windy City.