Undefeated boxer Floyd Mayweather and mixed martial arts champion Conor McGregor, two of the most popular athletes in their respective sport, have agreed to a crossover fight in the ring on August 26 in Las Vegas, Mayweather said in a tweet on Wednesday.
Mayweather, 40, retired in 2015 with an unblemished 49-0 professional boxing record while boastful Irishman McGregor, 28, is the UFC’s lightweight champion.
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