On Sunday at noon ET, NFL Network will air a feature of never-before-seen footage of Denver Broncos quarterback Peyton Manning's road to recovery.  Below is a sneak peek:

Since returning from injury, Manning has led the Broncos to a 13-3 record and a first-round bye in the playoffs.  Considered a 2012 MVP candidate, Peyton will play in his first playoff game as a Bronco on Saturday.