Boxing: Floyd Mayweather - If Conor McGregor is smart he'll let me kick his a** and make a ton of money

Floyd Mayweather has advised Conor McGregor to fight him and make tens of millions in a boxing match before the Irishman loses in the UFC and fades as one of the hottest properties in combat sports.

McGregor has become a lightning rod in the UFC and has consistently called out Mayweather for a boxing match over the last eight months.

"The difference between me and him is this: He has to fight. If I was him and I was smart, before I lose again in the UFC I'd let Floyd Mayweather kick my a** for a lot of money. It makes business sense," said Mayweather.

"There's a difference between being an employee and an employer," added Mayweather, who is self-promoted. McGregor is under contract with the UFC.

"If someone says 'I want to fight Floyd Mayweather', I can simply say 'yes, let's make it happen'. But when you've got a guy like Conor McGregor he has to talk to Dana White (the UFC president). Dana has to talk to Dana's bosses.

"Conor's not a shot caller. When they said 'Why is Floyd Mayweather not fighting Manny Pacquiao?', it was because Manny Pacquiao had a boss. I don't have a boss. We could have easily made the fight happen years ago. Everything happens for a reason.

"The first time I was going to fight Manny Pacquiao I was guaranteed $50 million but I had patience. And when I had patience that fight became a $300 million fight."

The American boxer, who retired undefeated in 49 contests as a five-division world champion, continued: "I've had a 20-year run. You have to give respect to get respect. The UFC is a great company, a cool company. But I still haven't seen one fighter (in the UFC), and I'm going to give you a low number – from 10 years ago – make $30 million. But we built our brand to make it £100 million a fight and £300 million a fight."

Rounding on McGregor, Mayweather added: "This guy said I'm a p***y, I'm scared, I'm a chicken. All 49 said the same thing and all the results were the same. So with that being said, if Conor McGregor really wants to fight me, we can make it happen. But is he blowing smoke up everybody's a**? We need to know.

"When I was a young fighter I could brag and boast and say I'm going to take his a** and do this and that. I'm Floyd Mayweather. But once I reached the top I didn't have anything to say."

Mayweather believes McGregor's demands are out of kilter with his standing and earnings. McGregor is estimated to earn between $5-7 million a fight with the UFC.

"If you haven't made $10 million you can't ask for $10 million. If you haven't made 20, you can't ask for 20," said Mayweather. "What you have to do is go to the Forbes and see what he's worth. I'm going to give you what you're worth. If he's worth five, we'll give him 10. If he's worth 10, we'll give him 20. We're talking about just one fight. We're going to choose one fight. In one fight I made more than Conor McGregor has made in his whole career."