Holyfield was caught cheating before, at least Tyson had grounds to ask for testing. What's Mayweather's reason for Olympic style drug testing? Pacquiao's beating bigger f!ghters. He never failed a drug test in his career. BS reasoning.
You're right, he's never tested positive before, but lets be honest, for all the coonery that the Mayweather's exhibit you cannot their knowledge of the sport of boxing, and it is as close to as impossible as it gets to come from the weight class the Pac has come from and have the same speed and more power. I have never accused Pac of being on anything but you cant help but be a little suspicious. Lets go over the facts: He started f!ghting at 106, and as recently as 2007, was still f!ghting under 130. He is now f!ghting at 147 or so and not only is he winning, but he is destroying f!ghters. Now they may not be the top level competition, but lets be honest here, when was the last time you saw a f!ghter move up 30 lbs through the course of his career and when he stopped moving up he was STILL KO'ing guys and they were saying "I'VE NEVER BEEN HIT LIKE THAT BEFORE"? Mosley, Margarito, Clottey are all considered tough f!ghters to hurt or finish, all have fought at 147 or 154 recently and all said the smaller man hit them like nothing they had felt before. How realistic is that? Roy Jones, James Toney, Evander Holyfield, Sugar Ray Leonard all great f!ghters that moved up in weight, some only one division, and all had noticebly less punching power than before they moved up. So forgive me if most people that know anything about boxing think its a little unrealistic that he moved up 7 weight divisions and is punching through people...my apologies