Brown signed his one-year tender with the Bears on Monday, Aaron Wilson of KPRC 2 Houston reports.
Brown didn't record a tackle in the Bears' 29-13 loss to the Vikings in Week 18, and ended the season with one tackle in five games played.
Brown (ankle) was an active participant during the Chargers' third-team 11-on-11 drills Friday, Daniel Popper of The Athletic reports.
Chargers head coach Brandon Staley said Friday that Brown is dealing with an ankle injury and is considered day-to-day, Daniel Popper of The Athletic reports.
Brown was restored to the Chargers' practice squad from the COVID-19 list Monday, Daniel Popper of The Athletic reports.
Brown (illness) was placed on the Chargers' practice squad COVID-19 list Monday, per the NFL's official transactions log and tested positive for the virus, according to Tom Pelissero of NFL Network.
The Colts claimed Brown off waivers from the Texans on Wednesday, Mike Chappell of Fox 59 News Indianapolis reports.
Brown was waived by the Bengals on Monday.
Brown had 14 tackles (10 solo) in 14 games this season.