Chicago Bears head coach Marc Trestman, right, talks to officials Tom Hill, left, and Brad Allen before an NFL football game against the Buffalo Bills on Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Chicago Bears head coach Marc Trestman watches as players warm up before an NFL football game against the Buffalo Bills Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Chicago Bears wide receiver Brandon Marshall (15) warms up before an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Buffalo Bills head coach Doug Marrone watches as players warm up before an NFL football game against the Chicago Bears Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Chicago Bears quarterback Jay Cutler (6) warms up before an NFL football game against the Buffalo Bills Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Buffalo Bills quarterback EJ Manuel (3) warms up before an NFL football game against the Chicago Bears Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Buffalo Bills quarterback EJ Manuel (3) celebrates his touchdown run with running back Fred Jackson in the end zone during the first half of an NFL football game against the Chicago Bears Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Planes do a flyover at Soldier Field before an NFL football game between the Chicago Bears and Buffalo Bills Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Kiichiro Sato)

Buffalo Bills running back C.J. Spiller (28) is tackled by Chicago Bears defensive players during the first half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Buffalo Bills head coach Doug Marrone watches his team during the first half of an NFL football game against the Chicago Bears Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Chicago Bears wide receiver Josh Morgan (19) runs after making a reception during the first half of an NFL football game against the Buffalo Bills Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Chicago Bears cornerback Kyle Fuller (23) tackles Buffalo Bills wide receiver Sammy Watkins (14) during the first half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Chicago Bears wide receiver Brandon Marshall (15) fumbles as he is tackled by Buffalo Bills cornerback Leodis McKelvin (21) during the first half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Buffalo Bills linebacker Preston Brown (52) goes after a loose ball after Chicago Bears wide receiver Brandon Marshall (15) fumbled after being tackled by Bills cornerback Leodis McKelvin (21) during the first half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Buffalo Bills cornerback Corey Graham (20) runs after intercepting a pass thrown by Chicago Bears quarterback Jay Cutler in the first half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Buffalo Bills running back C.J. Spiller (28) celebrates his touchdown with teammate Fred Jackson (22) in the end zone during the first half of an NFL football game against the Chicago Bears Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Buffalo Bills running back C.J. Spiller, right, celebrates his touchdown with teammate Seantrel Henderson during the first half of an NFL football game against the Chicago Bears Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Buffalo Bills safety Duke Williams (27) tackles Chicago Bears tight end Martellus Bennett (83) during the first half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Chicago Bears cornerback Sherrick McManis (27) tackles Buffalo Bills running back Fred Jackson (22) during the first half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Buffalo Bills running back Anthony Dixon (26) rushes between Chicago Bears defenders during the first half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Buffalo Bills running back C.J. Spiller (28) is tackled by Chicago Bears safety Ryan Mundy (21) and cornerback Charles Tillman (33) during the second half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Chicago Bears wide receiver Brandon Marshall (15) makes a touchdown reception against Buffalo Bills cornerback Leodis McKelvin (21) during the second half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Chicago Bears wide receiver Brandon Marshall (15) makes a touchdown catch in the end zone in front of Buffalo Bills cornerback Leodis McKelvin (21) during the second half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Chicago Bears wide receiver Brandon Marshall (15) makes a touchdown reception in the end zone in front of Buffalo Bills cornerback Leodis McKelvin (21) during the second half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Buffalo Bills defensive tackle Kyle Williams, center, celebrates with his teammates after intercepting a pass intended for Chicago Bears wide receiver Brandon Marshall during the second half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Chicago Bears' Danny McCray (29) tackles Buffalo Bills' Leodis McKelvin (21) on a punt return during the second half of an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Chicago Bears' Robbie Gould (9) kicks a 37-yard field goal to tie the game in the fourth quarter of an NFL football game against the Buffalo Bills Sunday, Sept. 7, 2014, in Chicago. Holding the ball ins the Bears' Pat O'Donnell (16)(AP Photo/Nam Y. Huh)

Buffalo Bills kicker Dan Carpenter (2) kicks the game-winning field goal in overtime of an NFL football game to beat the Chicago Bears 23-20 on Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Buffalo Bills running back Fred Jackson (22) tries to stretch for the end zone as he is tackled by Chicago Bears linebacker Jon Bostic (57) during overtime of an NFL football game Sunday, Sept. 7, 2014, in Chicago. The run set up a game-winning field goal in the Bills 23-20 win over the Bears. (AP Photo/Charles Rex Arbogast)

Buffalo Bills quarterback EJ Manuel (3) throws a pass during overtime of an NFL football game against the Chicago Bears Sunday, Sept. 7, 2014, in Chicago. The Bills won 23-20. (AP Photo/Nam Y. Huh)

Buffalo Bills kicker Dan Carpenter (2) celebrates with his teammates after kicking the game-winning field goal in overtime to beat the Chicago Bears 23-20 during an NFL football game Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Nam Y. Huh)

Buffalo Bills running back Fred Jackson (22) rushes during overtime of an NFL football game against the Chicago Bears Sunday, Sept. 7, 2014, in Chicago. The Bills won 23-20 in overtime. (AP Photo/Charles Rex Arbogast)

Buffalo Bills running back Fred Jackson (22) rushes with the ball during overtime of an NFL football game against the Chicago Bears on Sunday, Sept. 7, 2014, in Chicago. The Bills won 23-20 in overtime. (AP Photo/Charles Rex Arbogast)

Chicago Bears wide receiver Alshon Jeffery (17) makes a reception on a pass thrown by quarterback Jay Cutler during the first half of an NFL football game against the Buffalo Bills on Sunday, Sept. 7, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)