Peyton Manning had the worst season of any Super Bowl-winning QB
Peyton Manning - Wikipedia
If You Think Peyton Manning is a Bad Playoff Quarterback, You're Wrong; He's Worse.
Super Bowl 50, Denver Broncos Peyton Manning
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Peyton Manning's amazing Super Bowl journey - NFL - ESPN
Peyton Manning: Super Bowl history for Denver Broncos quarterback - Sports Illustrated
Super Bowl 2014: Peyton Manning Is Mr. Annoying - WSJ
Goodbye to Peyton Manning, Greatest Quarterback of the 21st Century - The Atlantic
Peyton Manning gets 500th career touchdown pass in win
Peyton Manning was one of the NFL's worst quarterbacks this year, and he still might win a Super Bowl