FILE - In this Dec. 11, 2011 file photo, Denver Broncos quarterback Tim Tebow prays in the end zone before the start of an NFL football game against the Chicago Bears, in Denver. Peyton Manning is negotiating to join the Broncos, ESPN reported Monday, March 19, 2012. Citing anonymous sources, ESPN said that the four-time MVP has instructed agent Tom Condon to negotiate the details of a deal with Denver. The addition of Manning could well lead to Denver trading Tebow, even though the popular QB energized the Broncos in leading them to the playoffs last season despite some uneven play. (AP Photo/Julie Jacobson, File)