The Fan Favorite

Former Pats FB Mosi Tatupu died suddenly five years ago at the age of 54. His death shocked his many fans. He was a favorite at Sullivan Stadium with his "Mosi Mooses" banner and cheering section.

His family revealed that his brain suffered from CTE, the debilitating condition found in many former players. His repeated head trauma caused him to have behavioral problems after he left the game.

There is no current test that can determine if a player has CTE. It can only be found upon autopsy. The problem will only get worse in years to come as players are autopsied.