Floyd Mayweather Jr. has challenged Conor McGregor, who had announced his retirement.
"If I’m not mistaken, didn’t you tell Mike Tyson you could beat me if we fought a second time? Now you’re quitting! I thought you wanted to beat the best? Well, if you decide to come back, I will be waiting to punish you again," Mayweather commented on one of Conor's Instagram posts.
Mayweather had 50 fights and 50 victories.
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