Mayweather UD, 8 rounds to 4.
Carlos grabs a few rounds when Mayweather chooses to soak up the pressure, but Mayweather pot shots his way to victory, taking the majority of rounds.
Will be interesting to see how strong Carlos looks in there, his definately a LOT bigger guy than Floyd. Carlos only way of winning is smothering Mayweather, wrasstling him to suck his energy, and getting physical and rough on the inside, trying to frustrate Mayweather into going to war with him. But this will not be enough, and Mayweather will take a decision here. This one is going the distance.