Denver Broncos quarterback Peyton Manning throws before the start of an NFL football game between the Denver Broncos and the Pittsburgh Steelers at Sports Authority Field at Mile High, Sunday, Sept. 9, 2012 in Denver. (AP Photo/David Zalubowski)

Photo by: David Zalubowski

Denver Broncos quarterback Peyton Manning throws before the start of an NFL football game between the Denver Broncos and the Pittsburgh Steelers at Sports Authority Field at Mile High, Sunday, Sept. 9, 2012 in Denver. (AP Photo/David Zalubowski)