Floyd Mayweather and Conor McGregor convinced more than four million people to spend money on a pay-per-view bout between a 40-year-old and an amateur boxer, making one of the world's highest-paid athletes even richer.
Mayweather, who earned an estimated $250 million for fighting Manny Pacquiao in 2015, got a guaranteed $100 million for the McGregor fight before factoring in the pay-per-view buys, and he's got the check to prove it.
McGregor, who also took home nine figures for the fight, responded on Twitter.
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