Manning declines comment on report regarding his willingness to be a backup

The day began with an NFL Network report suggesting that Broncos quarterback Peyton Manning does not want to serve as the backup to Brock Osweiler, which provoked an NFL Network studio reaction that seemed to mistakenly assume that Manning would refuse to be Osweiler’s backup. Broncos G.M. John Elway has refuted the report (sort 0f). At Sunday’s Broncos-Steelers…