Bears general manager Ryan Poles said Brisker (concussion) has been ruled out for Sunday's game against the Jaguars in London, Brad Biggs of the Chicago Tribune reports.
Brisker began displaying concussion symptoms Monday, after the team's Week 5 win over the Panthers. The Penn State product did not travel with the Bears to London, but he wasn't immediately ruled out from clearing the five-step concussion protocol prior to the weekend. However, the Bears are now deciding to play it safe with Brisker, who will have Week 6 plus a Week 7 bye to potentially exit the protocol in time to return to the lineup Week 8 versus the Commanders on Oct. 27. In Brisker's absence, Elijah Hicks is expected to pick up a start at safety in London.