Bears quarterback Justin Fields went to the locker room five minutes into the second half after being tackled to end the Bears’ first drive of the third quarter.
Fields first went to the injury tent after walking to the sideline. The Bears later ruled him out for the game with a ribs injury.
Veteran Andy Dalton took his place and threw a touchdown pass on his second snap — a 60-yard screen pass catch-and-run by receiver Darnell Mooney.
Anticipation for Fields’ first game after the bye was high after the rookie showed promise in the fourth quarter of the Bears’ loss to the Steelers. But Fields struggled against one of the league’s worst pass defenses, completing 4-of-11 passes for 79 yards Sunday at Soldier Field. He ran four times for 23 yards.
Dalton played three snaps against the Raiders when Fields was briefly injured, but otherwise hasn’t played since suffering a bone bruise in his knee while running out of bounds against the Bengals in Week 2.