Barrett Robbins’ Meltdown
It’s not entirely accurate to describe this as a mistake but a horrible sequence of events changed Robbins’ life. The Pro Bowl center played a crucial role in inspiring the Raiders to the Super Bowl against Tampa. However, Robbins disappeared during the night before the big game and nobody knew where he went.

Robbins experienced a savage bout of depression and didn’t call his family. Instead, he went on a drinking spree with people who didn’t care about his best interests. He went on a downward spiral as he cavorted with prostitutes and wept for his wife. In the end, he spent the game in the hospital (via NBC Sports).