Floyd Mayweather vs Conor McGregor: when is the fight, what are the rules and who will win?

Floyd Mayweather Jr. will come out of retirement to meet UFC star Conor McGregor in a much-anticipated boxing match that will feature two of the top-selling fighters in the world.

The two fighters both announced the fight after months of speculation about whether Mayweather would be lured back to the ring at the age of 40 to face a mixed martial arts fighter who has never had a pro boxing fight.

Here's everything you need to know about the fight.

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