How high would you rank Manny in ATG if he beats PBF?

[Pavlik]

http://www.youtube.com/watch?v=mFUQdY6Fx_M

As of this moment Bert Randolph Sugar and Brian Kenny of ESPN ranks Manny at least in the top 20 ATG. If Pacman beats Mayweather where would you put Manny in your ATG list?

Thanks.