VIDEO: Celebrating the 30th Anniversary of Mike Tyson's Shocking KO Loss to Buster Douglas

On this day 30 years ago, we witnessed perhaps the most stunning, disarming upset in the modern history of facepunching. It was the kind of moment that leaves you so baffled and nonplussed that you begin to wonder which other fundamental laws of nature may also be untrue. Listed at as much as a 42-1 underdog, James "Buster" Douglas walked into the Tokyo Dome against undefeated, undisputed heavyweight champion of the world Mike Tyson and knocked the dude out in the 10th Round, turning the entire sports world upside down and changing boxing forever.

And that was that.

Douglas was coming off a six-fight winning streak, but was given absolutely zero chance in the fight. The cracks in Iron Mike's armor, however, were there. His personal life was ever-tumultuous, and he made it utterly clear that he had no interest in dedicating himself to a training camp before the fight -- he came to Japan for wall-to-wall bacchanal.

But in the end, it was Buster's party.

Of course, much like Andy Ruiz Jr. 29 years later, Douglas had no staying power. Once he was the champ, the sweet life was too seductive. He suffered a decisive third-round KO loss to Evander Holyfield in his very next fight, and immediately retired after a big payday -- but that could never change what happened that night in Tokyo. Not a chance.