Brown isn't the first referee to have to leave the field this season.
Follow LIVE Chicago vs. Detroit score updates below.
Q2 Weather: Geminid meteor shower tonight, sky permitting
Unlike eclipses, which last only a short time, you can see meteors on any clear night several days before and after the peak. This year is no different, and all that detritus will provide a pretty dazzling light show tonight, according to NASA .
The Bears (4-9) shocking 33-7 demolition of the Cincinnati Bengals was impressive, but it's probably not going to save coach John Fox. You know the Bears would love to end their division rival's playoff hopes, but the Lions undoubtedly will do everything they can at home to avoid that happening.
Caldwell is under contract for at least two more years thanks to a multiyear extension, a deal the team didn't announce until months after he signed it, but a late-season slide may warm his seat.
Bears outside linebacker Pernell McPhee and nose tackle Eddie Goldman, who each missed Sunday's game with injuries, are both active.
Inactive for the Lions are center Travis Swanson (concussion), right tackle Rick Wagner (ankle), wide receiver Bradley Marquez, guard Emmett Cleary, defensive tackle Rodney Coe and running backs Zach Zenner and Dwayne Washington.