Dallas Cowboys player who died by suicide diagnosed with brain disease

""Unfortunately, I was not surprised to find CTE in the brain of Mr Kneeland, because we have found this progressive brain disease in nearly half of the athletes we've studied who have died before the age of 30.""

— Dr Ann McKee , Academic

""Mr Kneeland played in the modern era of concussion protocols and better helmets, and yet he still developed CTE.""

— Dr Chris Nowinski , Academic