Floyd Mayweather has reached the age in boxing where it becomes dangerous to screw around with your weight. If Floyd decides to move up and fight Martinez at 154/160, then he can forget about ever beating Pacquiao at 147, because it aint going to happen.
Roy Jones tried to be Superman by winning the Heavyweight title, and ended up kneeling before Zod when he returned back to his natural weight. Its never worked in the history of Boxing and Floyd is no different.

Roy Jones tried to be Superman by winning the Heavyweight title, and ended up kneeling before Zod when he returned back to his natural weight. Its never worked in the history of Boxing and Floyd is no different.

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