Floyd Mayweather: 'The Money Man' eyes one last payday

One of this brothers, Edson "Little Tiger" Berto is an MMA fighter with a 17-12 record.

 

Berto will hope to replicate Buster Douglas's win over Mike Tyson -- the biggest upset in boxing history, which took place 25 years ago at the Tokyo Dome.

Heavyweight champion Tyson, 37-0 at the time, was seen as unbeatable, while Douglas was known only to the most fervent boxing enthusiasts.

That the match was fought in Japan, at noon local time to accommodate global audiences, speaks volumes about the fight's lack of drawing power in America.

An overconfident Tyson was knocked out by Douglas in the 10th round, and although "Iron Mike" would later regain his heavyweight belts, he was never again the same fighter.

Tyson would later recount being up all night in his hotel room before the fight.

"I guess I didn't have no respect for Buster Douglas as a fighter," he said, recently recalling his training for the Douglas fight to Playboy. "I was like the Floyd Mayweather of back then, pretty arrogant and stuff and saying what was on my mind without having a filter."

Mayweather will surely keep all that in mind before stepping into the ring on September 12, probably with more sleep than he got before the press conference.