mayweather vs miguel cotto : Physical Advantage?

Floyd Mayweather Jr and Miguel Cotto kicked off their promotional tour today in Puerto Rico, and Mayweather gave an indication of respect to his May 5 foe, but still believes (of course) that he'll end Miguel Cotto's 154-pound title reign

"Miguel Cotto will fight hard....it will be a very exciting fight. On May 5th, it won't be an ordinary day. We're going to give people all around the world what they want to see. It will be a challenge for me to fight Miguel at this weight, but this will be the kind of test that will motivate me to train harder. I have no doubt that my collection of belts will increase again and Cotto's reign will end on May 5th," Mayweather said.