Donovan McNabb
Andy Reid is a legendary coach and a future Hall of Famer but this wasn’t his finest moment. He guided the Eagles to a Super Bowl clash against the Patriots. But he made a costly error that meant Philadelphia went home empty-handed. McNabb suffered an illness during the week leading to the Super Bowl but started the match.

It was fine until the fourth quarter when suddenly the Eagles slowed down. The Patriots led by 10 points but Philly showed no urgency or desire. They spent more time huddling than trying to score touchdowns. McNabb allegedly vomited in one of them but Reid left him on the field regardless (via N.Y. Post).