Justin Fields, quarterback for the Chicago Bears, suffered a dislocated right thumb in Sunday's game and is doubtful for Week 7 against the Raiders. Coach Matt Eberflus mentioned that Fields' timetable will depend on his grip strength. Undrafted rookie Tyson Bagent is the Bears' QB2 and came in as a relief for Fields in the last game. Bagent had a rough start with a fumble that resulted in a touchdown but finished with 10 of 14 passing for 83 yards, no touchdowns, and one interception. The Bears may consider starting veteran Nathan Peterman against Las Vegas.