Give it a couple of years and I wonder if we will we see a dream fight between Khan v Mayweather. I know Khan would have to come up a couple of divisions, 12lbs difference at the moment, but he's a growing lad and I'm sure he would be comfortable fighting in a slightly heavy weight division.
Lets not get too excited Amir is a very exciting prospect. Mayweather is a living legend already in the boxing world and will go down as one of the top boxers to ever live, top 10 imo.
If it is not in the very distant future Mayweather destorys him very quickly.