The only way that I can see Berto as standing a chance against Mayweather, is if that fight took place maybe 3 years from now, and by that point it isn't likely going to happen. From here on out, Floyd is either taking on opponents who fall into the " stay busy " category, or ones who present a mega million dollar gate, and Berto doesn't fit either description. If Andre wants to achieve greatness, then he's going to have to pave out his own way to it, and he can start by fighting better men than the ones he's been going up against.
Why call out the 2nd best boxer if you even can call him that.. Manny rank 1 ofc they gonna all call him out