Mayweather, the no. 2 pound for pound, versus Mosley, the number. 3 pound for pound, at welterweight, for Shane's WBA world title, is obviously a mega fight.
Pac-Clottey doesn't have the same lustre, but it will probably do about 1 million PPV buys, Clottey - in many people's eyes - beat Cotto, and he's certainly been an avoided welterweight, so that is also a huge fight, in front of 45,000 at a damn football stadium.
Mayweather and Mosley is getting a lot more press and the fight is still almost 2 months away.
They are getting alot of attention! This fight may get some big numbers.