Conor McGregor says he’ll be a billionaire by the time he’s 35 years old, but that he’s not fighting for the money.

In an extensive interview with ESPN’s Ariel Helwani ahead of his UFC return against ‘Cowboy’ Cerrone, the 31-year-old MMA megastar said he doesn’t plan on ending his fight career any time soon – despite having feigned retirement multiple times in recent years.

And part of that plan involves a boxing rematch with Floyd Mayweather, for which McGregor earned an estimated $US80 million.

Watch Conor McGregor v Donald ‘Cowboy’ Cerrone at UFC 246 on Main Event.

RETURN OF THE MAC:

“I’d like to rematch Floyd. I think we should rematch Floyd,” he said.

“I mean, he’s flirting with it … he can go and pick someone else, (but) it’s not gonna be the same.”

McGregor lost via TKO in the 10th round of his fight with Mayweather in Las Vegas in August 2017, which had 4.3 million pay per view buys in the US and generated over $US600 million. It was the second-biggest fight of all time, behind only Mayweather’s bout with Manny Pacquiao.

Mayweather will return for a fight in 2020, . He put his career record at 50-0 by defeating McGregor and then beat Japanese kickboxer Tenshin Nasukawa at a Rizin event in Japan on New Year’s Eve 2018.

McGregor also suggested there have been negotiations between his camp and Pacquiao’s.

“There was an offer made on (a Pacquiao bout),” McGregor said. He was asked what happened but replied “not just yet”.

Watch LIVE UFC with ESPN on KAYO including every Fight Night & preliminary fights for PPV events. New to Kayo?

Asked whether he will still be fighting at 40, McGregor said “I don’t know, probably.”

“But I’m gonna have a solid couple of years, though. I know I’ll be rocking until I’m 35. I’m gonna hit the billy ($1 billion) by the time I’m 35 years of age – I’ll be a billionaire by the time I’m 35.”

McGregor admitted he watches with interest the lists of the highest-paid athletes on the planet – calling it “my list”.

“It alternates by year. I’m not sure where I was this year. Not bad. Jeez, I forget now, to be honest, but I was up there. I was up there,” he said.

“I saw the decade one. Floyd was top of the decade. It’s fair play to him. He’s just not so good at the management of it, right?

“I’m still a good way away (from the billion mark), but I mean, I’ll get there. I’ve got the methods, and it’s something that excites me.

Find a local venue to watch McGregor v Cerrone at UFC 246 with the

McGregor happily declared he’ll make $US80 million for his fight with Cerrone this weekend.

“We’ve got a good deal. Very happy. Very excited to see how it unfolds, right?” he said.

“Like I said, this is a new set-up with it, but I’m confident it’s gonna be a good and nice paycheck. I’m estimating a good $80 million. They think I’m toast, Ariel, but I’m still the bread.”

But the Irishman also claimed in his interview with Helwani he doesn’t fight for financial gain.

McGregor’s boxing match with Mayweather was the second-biggest combat sports event ever, in terms of money made. (Photo by Ethan Miller/Getty Images)

“For me, it’s not about money. I’m in a position where it’s forever money,” he said.

“This is not for money for me. No amount of money will stop my hunger for this and my hunger to compete and entertain and just live my life the way I want to live it and the way I enjoy to live it.

“Too much money without an awareness of it in the past can be dangerous. There’s no limits. There’s no boundaries. You can do anything. You can go anywhere. I know what I want to do and what I enjoy doing.

“And this is what I enjoy doing. And so I’m going to keep doing it. Now I’m doing it full steam ahead and I’m in the best shape of my life. Mental and physical.”