5 Reasons why Conor McGregor vs Floyd Mayweather is the biggest fight in history

#2 Personalities involved

Conor McGregor and Floyd Mayweather are the biggest stars in their respective sports

There are no bigger personalities in the combat sports world today than Conor McGregor and Floyd Mayweather.

MMA has other stars like Ronda Rousey and Jon Jones and boxing boasts of Anthony Joshua and Manny Pacquiao, but no other athlete can hold a candle to either McGregor or Mayweather in terms of global appeal in their respective sports.

McGregor's meteoric rise is only mirrored by the growth of MMA and Mayweather has been the undisputed king of boxing ever since the Oscar de la Hoya fight.

And when they come together to pit brains and brawn, it is a once in a lifetime event that cannot be paralleled by any two other combat sports athletes.