A new report published in the July 2017 Journal of the American Medical Association.

Reflect that in a study CTE was diagnosed in 177 former players or nearly 90 percent of brains studied.

That included 110 of 111 brains from former NFL players; 48 of 53 college players; nine of 14 semi pro players, seven of eight Canadian football league players and three of 14 high school players.

Report by Lindsey Tanner- Associated Press