50 Cent Fires More Shots at Floyd Mayweather on Twitter

Just who is this Gamboa dude 50 Cent keeps referencing in his Twitter beef with Floyd Mayweather? Well, Yuriorkis Gamboa is an undefeated (21-0, 16 knockouts) Cuban boxer, a former WBA and IBF featherweight champion, and the flyweight gold medalist from the 2004 Athens Olympics. He's signed on to 50 Cent's SMS Promotions and, according to Fif, has a shot at beating the 43-0 Floyd Mayweather. 50 Cent went to Twitter to further stress the point:

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