Filed under: Featured , News , UFC Conor McGregor vs. Floyd Mayweather? It’s a seemingly unlikely headliner, but now two other combat-sports notables are stumping for the co-headlining spot. As UFC lightweight champion McGregor (21-3 MMA, 9-1 UFC) and undefeated boxing legend Floyd Mayweather (49-0) continue chatting up a possible but currently unlikely cross-sport superfight , two other famous names are offering their services for the fantasy event’s co-main-event slot
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