Filed under: News , UFC Conor McGregor is already one of the world’s biggest combat sports stars. If he can beat Floyd Mayweather by knockout in their boxing match later this summer, though, UFC President Dana White thinks he will be the biggest sports star on the planet, period. After months of speculation and doubt, the anticipated boxing match between Mayweather (49-0 boxing) and McGregor (21-3 MMA, 9-1 UFC) was made official today .
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