CORRECTS SPELLING OF KUTCHER - Ashton Kutcher walks along the sideline before the NFL football game between the Pittsburgh Steelers and the Chicago Bears at Heinz Field on Sunday, Sept. 22, 2013, in Pittsburgh. (AP Photo/Keith Srakocic)

Chicago Bears running back Michael Bush (29) scores a touchdown between Pittsburgh Steelers linebacker Vince Williams (98) and defensive end Cameron Heyward (97) in the first quarter of an NFL football game in Pittsburgh, Sunday, Sept. 22, 2013. (AP Photo/Gene J. Puskar)

El corredor Michael Bush (29), de los Bears de Chicago, celebra tras anotar un touchdown frente a los Steelers de Pittsburgh, el domingo 22 de septiembre de 2013 (AP Foto/Gene J. Puskar)

Pittsburgh Steelers tight end Heath Miller (83) is hit by Chicago Bears cornerback Isaiah Frey (31) after making a catch in the third quarter of an NFL football game on Sunday, Sept. 22, 2013, in Pittsburgh. (AP Photo/Don Wright)

Pittsburgh Steelers wide receiver Antonio Brown (84) makes a touchdown catch in front of Chicago Bears strong safety Major Wright (21) in the second quarter of an NFL football game on Sunday, Sept. 22, 2013, in Pittsburgh. (AP Photo/Don Wright)

Chicago Bears head coach Marc Trestman on the sideline during the third quarter of an NFL football game against the Pittsburgh Steelers on Sunday, Sept. 22, 2013, in Pittsburgh. The Bears won 40-23. (AP Photo/Don Wright)

Chicago Bears defensive tackle Henry Melton (69) is taken off the field on a cart after being injured in the third quarter of an NFL football game against the Pittsburgh Steelers in Pittsburgh, Sunday, Sept. 22, 2013. (AP Photo/Gene J. Puskar)

Chicago Bears running back Matt Forte (22),steps out of bounds after getting hit by Pittsburgh Steelers strong safety Troy Polamalu (43) on a long run in the first quarter of an NFL football game on Sunday, Sept. 22, 2013, in Pittsburgh. (AP Photo/Don Wright)

Pittsburgh Steelers fans watch from the upper deck seats at Heinz Field in the third quarter of an NFL football game against the Chicago Bears in Pittsburgh, Sunday, Sept. 22, 2013. (AP Photo/Gene J. Puskar)

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates making a touchdown catch in the third quarter of an NFL football game against the Chicago Bears on Sunday, Sept. 22, 2013, in Pittsburgh. (AP Photo/Don Wright)

Chicago Bears defensive end Shea McClellin (99) hits Pittsburgh Steelers quarterback Ben Roethlisberger (7) during in the second quarter of an NFL football game in Pittsburgh, Sunday, Sept. 22, 2013. Roethlisberger escaped the tackle. The Steelers lost 40-23. (AP Photo/Gene J. Puskar)

Pittsburgh Steelers wide receiver Antonio Brown (84) makes a catch in front of Chicago Bears free safety Chris Conte (47) in the second quarter of an NFL football game on Sunday, Sept. 22, 2013, in Pittsburgh. (AP Photo/Don Wright)

Chicago Bears running back Matt Forte (22) is hit by Pittsburgh Steelers defensive end Brett Keisel (99) in the first quarter of an NFL football game on Sunday, Sept. 22, 2013, in Pittsburgh. (AP Photo/Keith Srakocic)

Chicago Bears running back Matt Forte (22), steps out of bounds after getting hit by Pittsburgh Steelers strong safety Troy Polamalu (43) on a long run in the first quarter of an NFL football game on Sunday, Sept. 22, 2013, in Pittsburgh. (AP Photo/Don Wright)

Chicago Bears wide receiver Alshon Jeffery (17) is hit by Pittsburgh Steelers cornerback Ike Taylor (24) after making a catch in the third quarter of an NFL football game on Sunday, Sept. 22, 2013, in Pittsburgh. (AP Photo/Don Wright)

Pittsburgh Steelers running back Felix Jones (23) tries to run past Chicago Bears cornerback Charles Tillman, right, in the second quarter of an NFL football game on Sunday, Sept. 22, 2013, in Pittsburgh. (AP Photo/Don Wright)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) tugs his helmet off as he leaves the field in the fourth quarter as his team is losing to the Chicago Bears in an NFL football game in Pittsburgh, Sunday, Sept. 22, 2013. The Steelers lost 40-23. (AP Photo/Gene J. Puskar)