Earlier today, at the final press conference leading up to Saturday's highly-anticipated May 4 showdown between undefeated pound-for-pound king Floyd Mayweather and multi-division world champion Robert Guerrero, the trainers and fathers of both fighters nearly came to blows when Ruben Guerrero began taunting Floyd Mayweather Sr. on the stage. Check out what went down as both men looked eager to trade blows.
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