4 ms·

The evidence is anecdotal now, but the sport is young: http://www.bloodyelbow.com/2016/1/10/10742776/opinion-reality-mma-knockouts-concussions-joe-rogan-goodri

• balls187 10y ago
  By and large, most of Gary's fights were outside the UFC, and his fights in the UFC were in the early days, where there were a lot fewer rules. In Pride, Soccer kicks to a opponents head were allowed, and Gary sought to fight in various promotions well passed his prime. If you look at other MMA fighters of his era that have displayed signs of CTE, they spent a considerable amount of fights outside the UFC.