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Bernie Kosar speaks out on battle with brain trauma after more than 100 concussions

Former wrestling superstar says he has 'severe brain trauma'

Kansas City teen who was shot in head for knocking on wrong door walks at brain injury event

Brewers' Willy Adames exits game, hospitalized after being hit by a foul ball

Dolphins’ Tua Tagovailoa considered retirement 'for a time' after his multiple concussions

Texas teen dies rock climbing, two hours later he revives: 'A literal miracle'

NFL, NFLPA approve new helmets for quarterbacks in latest step to combat concussions

Alabama family sues school district after son suffered concussion during hazing

Former NFL player breaks down his Super Bowl LVII prediction

James Harrison responds to Antonio Brown's claims Harrison caused receiver's 'CTE,' 'aggressive behavior'