(CBS) Bears safety Quintin Demps is out indefinitely after fracturing his left forearm in a 23-17 overtime win over the Steelers on Sunday.

Coach John Fox announced this news Monday to reporters at Halas Hall. It remains to be seen whether Demps will be placed on injured reserve.

The injury to Demps occurred during the fourth quarter. Adrian Amos assumed his place at safety alongside rookie Eddie Jackson.

Fox declined to say whether center Hroniss Grasu suffered a fracture in his right hand. Grasu was wearing a cast on the sidelines after leaving the game.

The Bears (1-2) face the Packers (2-1) at Lambeau Field on Thursday.