How many young people die playing football?
Oregon tight end, social media star, dies of head injury
John Madden, Hall of Fame Coach and Broadcaster, Is Dead at 85
See a statement from the family of Dick Butkus after his death
NFL player Phillip Adams killed 5, then himself, authorities say
One NFL player has died on the field. His widow watched Damar
Pennsylvania high school football player who collapsed on field
New Hampshire man died after being punched at Patriots game
Franco Harris, Steelers Hall of Fame Running Back, Dies at 72 - WSJ
Aspetar Sports Medicine Journal - Sudden death in football