Floyd Mayweather Jnr v Oscar De La Hoya took place in May 2007. A true superfight between two champions. This for a lot of people was the closest Floyd has come to losing. Many believe he did lose. Oscar fought the perfect fight, fighting in bursts to catch the eye of the judges with some superb combinations. It was since this fight that Mayweather stepped up his game to the level he is now at. He is currently virtually unbeatable. A defensive genius. Many thought Pacquiou might have what it takes to beat him, but he barely won a round when they fought in May 2015.