A study of more than 2,300 deceased NFL players estimates roughly 75% had CTE, the degenerative brain disease linked to repeated head trauma in football.
https://www.foxnews.com/outkick-sports/study-finds-roughly-75-percent-deceased-nfl-players-had-least-some-degree-cte-brain-disease
https://www.foxnews.com/outkick-sports/study-finds-roughly-75-percent-deceased-nfl-players-had-least-some-degree-cte-brain-disease