Leonard is a tough matchup for Mayweahter, Leonard is good on inside (Hearns, Duran I) He is as fast as Mayweather at WW, he's 2-3 inches taller, has an inch I believe in reach advantage. I think Mayweather has the most trouble dealing with Leonard's movement and jab, I think Mayweather would be exceptionally hard to hit for Leonard, and might connect at a relatively higher %, but that Leonard would throw way more punches, and look good in throwing combinations while Mayweather is on the ropes, though I don't see Leonard landing a whole lot, as fast as he is. I also think Mayweather might come forward like he against Judah, if he saw Leonard against Hearns he would notice that Hearns throw a punch everytime Leonard tried to set himself early on, and that resulted in Leonard not being able to get off, if Mayweather sees this then he might try to capatilize on Leonard one noticeable fault. WHen he uses his feet he, very quickly, needed to set before throwing punches, and a fast guy like Hearns caught it, and I think Mayweather could as well, but Leonard being the bigger guy makes me think Mayweather is going backwards in this one.