Montgomery's knee injury means uncertainty for Bears offense
Chicago Bears wide receiver Darnell Mooney (11) catches a pass from quarterback Justin Fields as Detroit Lions defensive back Bobby Price defends during the second half of an NFL football game Sunday, Oct. 3, 2021, in Chicago. (AP Photo/David Banks)

Chicago Bears wide receiver Darnell Mooney (11) catches a pass from quarterback Justin Fields as Detroit Lions defensive back Bobby Price defends during the second half of an NFL football game Sunday, Oct. 3, 2021, in Chicago. (AP Photo/David Banks)

Oct. 03, 2021 09:42 PM EDT
Chicago Bears running back David Montgomery grimaces in pain after being injured during the second half of an NFL football game against the Detroit Lions Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Nam Y. Huh)

Chicago Bears running back David Montgomery grimaces in pain after being injured during the second half of an NFL football game against the Detroit Lions Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Nam Y. Huh)

Oct. 03, 2021 04:27 PM EDT
Detroit Lions running back Jamaal Williams stiff arms Chicago Bears inside linebacker Roquan Smith during the first half of an NFL football game Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Nam Y. Huh)

Detroit Lions running back Jamaal Williams stiff arms Chicago Bears inside linebacker Roquan Smith during the first half of an NFL football game Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Nam Y. Huh)

Oct. 03, 2021 09:43 PM EDT
Chicago Bears head coach Matt Nagy, right, looks at running back David Montgomery (32) as he leaves the field after being injured during the second half of an NFL football game against the Detroit Lions Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Nam Y. Huh)

Chicago Bears head coach Matt Nagy, right, looks at running back David Montgomery (32) as he leaves the field after being injured during the second half of an NFL football game against the Detroit Lions Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Nam Y. Huh)

Oct. 03, 2021 04:32 PM EDT
Chicago Bears running back David Montgomery (32) grimaces in pain as he leave the field after being injured during the second half of an NFL football game against the Detroit Lions Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Nam Y. Huh)

Chicago Bears running back David Montgomery (32) grimaces in pain as he leave the field after being injured during the second half of an NFL football game against the Detroit Lions Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Nam Y. Huh)

Oct. 03, 2021 04:27 PM EDT