5 things you didn't know about Floyd Mayweather

'Money' Mayweather is more than happy to brag about his unbeaten record and considerable earnings, but here are five things you didn't know about the American

Floyd Mayweather and Manny Pacquiao meet in Las Vegas on Sunday in the richest fight in history.

The American fighter has boasted incessantly in the build-up to the clash about his earnings and lifestyle. Fans are accustomed to seeing pictures of him with wads of cash, a fleet of cars or even his private jet.

He's not shy when it comes to talking about his pedigree as a fighter, his unbeaten record or his (self-awarded) title as 'The Best Ever'. But what doesn't Mayweather talk about? What don't we know about him?

Here are five facts about the 38-year-old you may not have known.

Pampered: Justin Beiber and Mayweather enjoy a spa day

1. Mayweather, a man who puts on gloves and then punches people in the face for a living, enjoys weekly manicures and pedicures during his training camps. If that image wasn't bizarre enough, he's sometimes joined for these sessions by Justin Beiber.

2. Mayweather has been chopping wood as part of his training for the upcoming fight. What you didn't know, however, was that each of those tree trunks was brought specially in from Big Bear in California, and can weigh up to 700lbs (318kg) each.

3. Mayweather likes barbecue sauce. As in, he REALLY likes it. He'll put it on pretty much anything he can. In a recent interview, his chef said: "He loves barbecue sauce. Everything with barbecue sauce. But that's life. You like what you know."

4. When he goes out to eat at a restaurant, the first thing he does is to order a glass of warm water. When it arrives, he puts his cutlery in it to let it soak for a while. We're not sure why either.

5. Every morning, as part of his routine, Mayweather like to brush his teeth for 10 (TEN) minutes.