“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 deccide to come back, I will be waiting to punish you again,” wrote future Hall of Famer Floyd Mayweather, who recently took to social media to respond to the retirement announcement of former UFC star Conor McGregor. Check it out!