Floyd Mayweather (42-0, 26 KO) is arguably the best fighter in the world pound for pound and undoubtedly the best American fighter active today. The 24-year-old Amir Khan (26-1, 18 KO) wants his title.
Khan wants his status, his accolades and everything that comes with being the best so he targets the best: Mayweather. He also appears to be targeting fighters with a similar style.
Bernard Hopkins (52-6-2, 32 KO) is a legendary fighter and partner at Golden Boy which promotes Khan. He set a fire last year with comments on Manny Pacquiao (54-3-2, 38 KO) not fighting black fighters.
Hopkins described the Black American fighting style as that of the "Ray Leonards." If Sugar Ray Leonard is to be examined as the archetype for this kind of fighter, Floyd Mayweather could be a successor.
Fighters like Zab Judah (41-7, 28 KO) and Lamont Peterson (29-1-1, 15 KO) are students of the school of Ray Leonard. Judah was knocked out by Khan this past July. Peterson will face Khan this Saturday.
It's possible Khan is perhaps influenced by Hopkins or understands that Hopkins was merely pointing out a particular style that could give Pacquiao trouble.
Then maybe Khan is targeting lesser fighters of that style in order to be properly prepared for the current master of that style, Mayweather.