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(WBIR) This could be Peyton Manning's last year in the NFL, according to ESPN's Chris Mortensen.

A medical exam after the season could determine if Manning returns for next season reports ESPN.

Manning has always said if the doctors told him, even during his recovery following a spinal fusion surgery, he shouldn't play, he'd walk away from the game.

The Broncos said they've been given no indications that Manning wouldn't get the go ahead to play next season. Right now, the Broncos expect him to return as quarterback in 2014.