Nearly 26 years ago in Tokyo, Tyson lost his heavyweight WBA, WBC and IBF titles after getting knocked out by 41-1 longshot Buster Douglas. Tyson was perfect in his previous 37 outings prior to that fateful night.
To this day, it remains arguably the biggest upset in professional sports history.
While his aura of invincibility was never the same, Tyson dusted himself off and reclaimed the WBA and WBC belts eight fights later. Tyson, who has been a solid presence for the UFC over the years, wanted to offer up some advice to UFC superstars Ronda Rousey and Conor McGregor following their shocking defeats.