Win, lose or draw, Floyd Mayweather will be a considerably richer man by Sunday morning.The 40-year-old is expected to earn a staggering $100 million (£78.5 million) from his fight against UFC superstar Conor McGregor in Las Vegas this Saturday night.Pretty impressive for one night’s work.However, while it’s true that his bank balance will be boosted this weekend, there’s an awful lot at stake for Mayweather in terms of his pride.Remember, the American boxing legend has never lost a fight during his illustrious career. His record currently stands at 49-0 and defeat against McGregor, who has never boxed before in his life, would be an abject humiliation.It would also be an embarrassment for boxing as a whole.McGregor is convinced he will knock out his opponent this weekend but the majority of boxing fans, particularly the purists, aren’t giving the charismatic Irishman a prayer.What would it say about the sport of boxing if a UFC star waltzes in and defeats their king at the first time of asking?

Mayweather seems very confident he will beat McGregor

Mayweather, though, doesn’t seem particularly concerned about McGregor.

Just this week, he was filmed eating a burger in footage which has gone viral on social media.

The insane bet Mayweather is considering making

In fact, Mayweather is so confident that he’ll defeat McGregor that he is ‘seriously considering’ placing an extraordinary bet on himself to beat his 50th - and final - opponent.

This is according to Pregame founder RJ Bell, who has been told by a trusted source in Vegas that Mayweather is planning to put a $5 million bet on himself to win this weekend.

Wow.

Mayweather is still the favourite

Mayweather is the firm favourite to win the fight, with most bookmakers pricing him at around 2/7 to emerge victorious.

Meanwhile, you can get around 11/4 on McGregor to cause arguably the biggest shock in boxing history.