Briggs has yet to file the official paperwork, but expects to make a final decision in the next few weeks.
After fielding minimal interest as a 34-year-old free agent, the seven-time Pro Bowl linebacker will join CSN Chicago as a studio analyst for Bears coverage.
Briggs was still capably stuffing the run in his decline phase, but had lost a step in range and closing speed. More problematic for prospective suitors, he had played in just 17 of 32 games the past two years after missing just four games in his first decade with the Bears.
One of the premier weakside linebackers of his generation, Briggs will finish his career with the fifth-most games and second-most tackles in franchise history.
Along with 2005 Defensive Player of the Year Brian Urlacher, Briggs was the backbone of Lovie Smith's ball-hawking defense that peaked with a Super Bowl XLI appearance.