He went up to 147 to fight Mayweather and Baltazar that isnt his weight he has his respect just for taking those fights. Now Mayweather has become champion at 147lbs against no real 147 pounders except Baltazer who isnt even from the US. He was a champion in Argentina big difference to a De La Hoya who is coming down and has been getting ready for this for maybe the last 2 years droping slowly! Get ready for a different ball game!