Support WBUROpinionA Fan's Notes On Pro Sports, Brain DamagePlay02:48Download AudioScott SimonJanuary 28, 2012 ShareTrainers help Cleveland Browns quarterback Colt McCoy after he took a hit during a game in December. In a series of interviews with The Associated Press, 23 of 44 NFL players said they would try to hide a brain injury rather than leave a game. (AP)