Report: Packers' Williams could have sprained knee, to undergo MRI

Green Bay Packers rookie running back Jamaal Williams is believed to have sprained his knee in Thursday's game against the Chicago Bears, according to NFL Network's Ian Rapoport.

Williams will undergo an MRI to confirm the severity of his injury.

Williams supplanted starter Ty Montgomery after he reportedly injured his ribs early in the game. Williams then exited with an injury of his own after registering just four carries for 11 yards and one reception for 2 yards.

The Packers turned to fellow rookie Aaron Jones to finish the game.