Manning’s Pick-Six
Peyton Manning is arguably the greatest regular-season quarterback ever. However, he arguably underachieved in the playoffs despite winning two Super Bowl rings. He had a golden opportunity to lift the Vince Lombardi Trophy in 2010. The favored Colts played the Saints but Manning had a bad game.

He threw a terrible pick-six that allowed the Saints to open up a lead. Tracy Porter claimed the ball before he rushed for a touchdown. Porter also blazed through Manning on the way to the endzone. The hapless quarterback was incapable of stopping him from rushing forward after his mistake (via USA Today Sports).