Khan has some big defeats, and so solid victories.. If he beats Mayweather, will that put he over the top?
I don't know. Even at this age a decisive W over Mayweather has to be one of the best wins in boxing history. One of the best of this era and probably one before it at the very least. The L's are clutch. The W's are over Maidana, Paulie, Kotelnik, Judah... Lets just say he is nowhere close to being close as of now.
If i walk in off the street and knock Floyd out do i become a hall of fame fighter? Nah. I think you need to have depth to your resume and he just doesn't. A few decent wins and one extraordinary win doesn't make a HOF