LAKE FOREST, Ill. (670 The Score) -- The Bears will start veteran Andy Dalton at quarterback against the Lions in Detroit on Thursday, coach Matt Nagy said Tuesday.
Rookie quarterback Justin Fields -- who has started Chicago's last eight games -- is likely to be inactive as he continues to deal with a ribs injury, Nagy said. The 22-year-old Fields exited with the injury in the third quarter of the Bears' 16-13 loss to the Ravens on Sunday, with Dalton taking over in his place.
Fields will return as the Bears' starter once he's healthy, Nagy said.
It's unclear how Fields suffered the injury. He underwent X-rays after a brief examination on the sideline at Soldier Field on Sunday and continued with further tests Monday.
Dalton, 33, started the Bears' first two games of the season before suffering a knee injury. Fields was named the permanent starter in late September, with Dalton relegated to the backup role.
An 11-year NFL veteran, Dalton has completed 65.8% of his passes for 471 yards, three touchdowns and an interception over parts of four games this season.
The No. 11 overall pick in the NFL Draft last spring, Fields has completed 58.1% of his passes for 1,361 yards, four touchdowns and eight interceptions.
The Bears (3-7) and Lions (0-9-1) kick off at 11:30 a.m. CT on Thursday at Ford Field.
Chris Emma covers the Bears, Chicago’s sports scene and more for 670TheScore.com. Follow him on Twitter @CEmma670.