Inside Floyd Mayweather’s gym where boxing legend trained in sweltering heat & forced sparring partners to arrive at 3am

The American’s gym is just two short miles from the Sin City strip where he collected the majority of his belts and millions in the ring.

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Floyd Mayweather training in his Las Vegas gymCredit: Getty

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Mayweather’s fight posters, in chronological order, adorn the gym wallsCredit: The Sun

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The Sun took a trip to the famed boxing clubCredit: The Sun

But the real work was done inside the Mayweather Boxing Club, where the 50-0 legend whipped himself into sensational shape.

He did so by training at all hours of the night, often as late as 3 am, and with the thermostat cranked up to a boiling 83 degrees (28 C).

The Sun took a trip to the iconic gym and experienced firsthand just how hot the boxing club was.

And according to Mayweather’s uncle Jeff, his nephew’s influence is so great that up-and-comers force themselves to train in the heat like their hero once did.

“Well, that’s because that’s what Floyd used to do and everyone that comes to the gym wants to pattern themselves after Floyd. So they let the gym just heat up and I hate it!” Jeff told us.

Mayweather, who officially retired in 2017 after beating UFC superstar Conor McGregor, prided himself on doing things his own way.

And to gain a psychological edge he would train in the middle of the night while his opponents slept.

So if you were on his training team it meant being on call at all times.