Floyd Mayweather reportedly has never bet on himself because he's 'very superstitious'

Floyd "Money" Mayweather loves to flaunt his cash.

Whether he's posting on Instagram or making it rain during his promotional press tour with Conor McGregor, Mayweather makes a point to show off his wealth and the life of luxury that has come to his fruition thanks to his mantra of "Hard Work/Dedication" and his undefeated record in the boxing ring.

He has also made a name for himself as a gambler, posting pictures of his big bets and winnings to his social accounts. Unsurprisingly, these posts are almost exclusively of winners.

It has long been rumored that Mayweather bet on himself in the boxing ring as well — a profitable endeavor, as he has never lost — but according to a recent report by ESPN's David Purdum, Mayweather has never bet on himself.

"He's never bet on himself," a source with direct knowledge of Mayweather's betting history told ESPN. "He's very superstitious and that's the one thing he doesn't bet on, his own fights, ever. His friends and crew bet small on him, but he has never done it."

It's a surprising tidbit, especially if you've been following Mayweather's gambling for a while. He recently told Jimmy Kimmel that he planned on betting on himself against Conor McGregor, and challenged McGregor to bet his whole fight check during their tour together. It only makes sense that he would have profited a few extra dollars off the sportsbooks in addition to the money he makes in the ring.

But superstition is a strong thing, and if Floyd has a system that has worked for him 49 times without fail, there's no reason to change now.

Mayweather and McGregor face off in the ring this Saturday in Las Vegas.

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