The announced receiver exited Monday's loss to the Los Angeles Rams and was evaluated for a concussion.
Since joining the team in 2018, Robinson has been one of the most reliable players in the Bears offense when healthy. The wideout entered play with 40 catches for 474 yards despite concerns about a contract extension.
He finished last season with 1,147 receiving yards and seven touchdowns, and his 98 catches ranked seventh in the NFL.
The 27-year-old also stayed healthy and played all 16 games for the first time since 2016.