This Saturday, Floyd Mayweather will rake in more than $100 million for his much-anticipated fight with Manny Pacquiao.
For his career, Money May has topped $400 million.
But back in 2006, Mayweather gambled $750,000 on his career -- a move that continues to pay off.
That $750,000 was a payment Mayweather made to Top Rank, the promotion company that represented him for the first decade of his career, to buy out of his contract.
In order to even have the opportunity to buy out, Mayweather had to turn down an $8 million payday for a proposed fight with Antonio Margarito; it would've been the greatest windfall of his career.
In 2007, Mayweather made $25 million in a fight against Oscar De La Hoya. The bout holds the record for most pay-per-view purchases.
By Mayweather serving as his own promoter, he became a boxing pioneer and continues to make more money than anyone thought possible.
Citations: Floyd Mayweather paid $750,000 to get out of his contract in 2006, and it made him hundreds of millions (Business Insider), Mayweather Career Earnings Top $400 Million With Maidana Fight (Forbes)