Honorable Mention: Peyton Manning
How can we possibly have one of the three greatest quarterbacks of all time on this list? It’s because for as good as Peyton Manning was, since the day he arrived in the NFL, he simply was not the same player in 2015 (Disclaimer: this does NOT apply to his first Super Bowl win with Indy). The declined strength in his throwing arm, affected by the degenerative nerve condition he had in his neck and shoulder area, was painfully evident. In the 10 games he played in during the 2015 season, he only threw nine touchdowns, compared to 17 interceptions. His passer rating that year was a career-low 67.9. It’s highly ironic that Manning, who always lacked an equal-caliber defense during his years in Indianapolis, was able to ride one of the best defenses ever en route to a victory in Super Bowl 50.