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Floyd Mayweather Jr. and 50 Cent aka Curtis Jackson attends the Lionsgate Home Entertainment and Grindstone VIP screening of "Freelancers" at the Mann Chinese Theater Hollywood, California - 08.08.12 Mandatory Credit: FayesVision/WENN.com

Most outrageous, controversial moments of Floyd Mayweather Jr.'s career

Mayweather's antics have made him the hottest pay-per-view draw in boxing, but he's made plenty of enemies and caused plenty of headaches along the way. Will we see another controversial moment on Saturday when the mercurial star fights Robert Guerrero?

Mayweather's least favorite thing to do | Key wins | 'Money' bloody before fight