CHICAGO -- Chicago Bears quarterback Justin Fields has been ruled out for Sunday's game against the Las Vegas Raiders because of the dislocated thumb in his right hand.
Fields, 24, was classified as doubtful on Monday by coach Matt Eberflus and did not practice during the week. Rookie backup Tyson Bagent will start against Las Vegas, becoming just the fourth Division II QB to start an NFL game in the last 20 years.
The Bears said they were waiting until the end of the week to make a determination on next steps with Fields.