Found this post in an online boxing group regarding Mayweather.

Most of the fighters? are you stupid?!
1. mayweather fought hatton at 147lbs when hatton was a legit 140lb champion. Pacquiao beat him at his legit 140lb weight lol...
2. Floyd fought marquez at 144lbs to which floyd came overweight.
3. for you to even give the thought that Mosley was still in his prime when floyd fought him is ridiculous.
4. Floyd fought cotto after he was pummelled twice at a weight where he definitely isnt in prime form.
5. Floyd ducked cotto and margarito at 140lbs and 147lbs