How much is too much money? Silly question, especially if your name is Floyd Mayweather. The boxer who makes Las Vegas his home has often shared images of how big his bets pay off on social media and, just before a fight against Conor McGregor that he said would bring him around $300 million, he was so confident of his impending victory that he tried to get a little more action. There’s no law preventing fighters from betting on themselves and, even at 40 and almost two years removed from his last fight, Mayweather was 49-0 going into Saturday night’s fight against a UFC star who had never before fought under the constraints that govern boxing.