Chicago Bears quarterback Andy Dalton is doubtful to return to Sunday's game against the Cincinnati Bengals with a knee injury.
Dalton went down in the first half on a scramble. He briefly returned to the game but was later taken out in favor of Justin Fields.
Dalton completed nine of 11 passes or 56 yards and a touchdown before exiting.
The 33-year-old Dalton is a three-time Pro Bowler playing in his 11th NFL season and first with the Bears. He spent his first nine seasons with the Cincinnati Bengals and led the team to the playoffs from 2011-2015.