ESPN on X: At 39 years and 320 days old, Peyton Manning is the oldest starting quarterback in Super Bowl history. #SB50 / X
Peyton Manning retirement: Quarterback says goodbye to football
Tom Brady–Peyton Manning rivalry - Wikipedia
At what age did Peyton Manning win his final Super Bowl? Legendary Broncos quarterback retired at the very top in 2016
Broncos beat Panthers, 24-10, to win Super Bowl 50 - The Washington Post
Peyton Manning is biggest of Week 17 surprises
Peyton Manning is biggest of Week 17 surprises