Peyton Manning Visits the Giants and Offers Some Wisdom - The New York Times
Peyton Manning aims to defy history of older QBs in NFL – The Denver Post
Peyton Manning Retires: How Manning Fueled the NFL
AP Source: Peyton Manning returning for 18th NFL season
Mind-blowing stats for Peyton Manning vs. Tom Brady
NFL's move to 17 games could alter record books - The San Diego Union-Tribune
Peyton Manning has checkered record in Super Bowl
How Peyton Manning Changed The Game — On And Off The Field, by Steve Krakauer, Project FANchise
The influence of Peyton Manning can be seen in how numbers changed since he arrived - NFL - ESPN
USADA helping NFL in Peyton Manning HGH probe
Peyton Manning returns to Tennessee as faculty member, will be 'featured expert' in select classes