Peyton Manning's worst game was a record-breaking nightmare that cost the Texans millions
Peyton Manning might've had the worst performance ever by a Super Bowl-winning quarterback – New York Daily News
2015 Really Was The Bizarro Peyton Manning Season
Peyton Manning Had The Worst Season Of Any Super Bowl Quarterback Ever
Did we just witness the evolution of Peyton Manning? - Mile High Report
Omaha! Omaha!' How Peyton Manning changed quarterbacking forever - ESPN
Broncos loss versus Panthers was worst in post-Manning era
James Bennett column: Should Peyton Manning retire?
Peyton Manning Hall of Fame Profile: 2021 Inductee
Peyton Manning threw one of the worst interceptions in Super Bowl history
All the records Peyton Manning and the Denver Broncos broke in 2013 - Mile High Report
Peyton Manning Gives Trent Dilfer Super Bowl Company
Peyton Manning isn't Trent Dilfer — he's much worse than that