Chicago Bears running back Chicago Bears running back Marion Barber (24) is hit by Philadelphia Eagles defensive back Jaiquawn Jarrett (26) in the second half of an NFL football game Monday, Nov. 7, 2011, in Philadelphia. (AP Photo/Michael Perez)

Chicago Bears running back Chicago Bears running back Marion Barber (24) is hit by Philadelphia Eagles defensive back Jaiquawn Jarrett (26) in the second half of an NFL football game Monday, Nov. 7, 2011, in Philadelphia. (AP Photo/Michael Perez)