Mitch Trubisky to start Bears’ fourth preseason game Posted Aug 29, 2017 Despite a preseason that made some of us wonder whether Bears rookie quarterback Mitch Trubisky should be the starter, Mike Glennon is the No. 1 quarterback. Which means Thursday night may be the last time Trubisky plays for a while. Bears coach John Fox confirmed today that Trubisky will be the starter for Thursday night’s preseason finale. (NBC Sports)