Quote Originally Posted by Stale_hotdog View Post
With Pacquaio that may be true. But for Mayweather I doubt that's the case. He easily re-hydrated to something along the lines of 160 against his fight with JMM. Also watching episodes of 24/7 he wasn't able to give urine samples to the USADA operatives until a span of several hours. Look at his eyes during training the guy is badly dehydrated cutting weight for the fight.
No way, Mayweather has always been fine making weight at welterweight, and he only came back up to 152 against JMM, and likely around there against Mosley.

The reason Mayweather and Pacquiao do so well is number of reasons, but probably the most important one is their work ethics. They work harder than anyone else and that means they stay fresher for longer, and they are in the fight for every second of every round, they don't get complacent or miss a beat at any point in a fight.

Their speed is obviously impressive, but there have been equally fast guys who haven't dominated like them. I also think its because of their technique, they are great at throwing both straight punches and hooks, but its their cardio that allows them to always dictate the pace they want to fight at.