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Mayweather was too sharp for the aging De La Hoya, even at 154.
A 2007 battle with Oscar De La Hoya established Mayweather as the premier fighter in the sport of boxing. The fight generated tremendous interest and served as a passing-of-the-torch moment from one box office star to another.
The fight itself didn't quite live up to the hype, but Mayweather's tremendous skill set was on full display for his largest audience yet. Thanks to numerous subplots (De La Hoya fired Mayweather's father as his trainer before the fight, this was Mayweather's first fight at the contract weight, etc.), the fight smashed numerous PPV records including buys (2.45 million) and domestic revenue ($136,853,700 million). The bout also generated $165 million in total gross revenue, the most for a fight ever.
Mayweather's speed and ring mastery were just too much for De La Hoya. He won the fight by split decision (116-112, 115-113, 113-115) though it probably should have been unanimous. With the win, Mayweather solidified himself as boxing's No. 1 celebrity, Floyd "Money" Mayweather.