Rousey's brutal message to UFC, Mayweather and McGregor

Returning superstar Ronda Rousey has attacked Conor McGregor and Floyd Mayweather for their obsession with money.

The 29-year-old, who's perspective on fighting has significantly changed since her knockout loss to Holly Holm in Melbourne, blasted the warring pair ahead of her return to the octagon to fight Amanda Nunes at UFC 207.

"If money is the motivation, then f*** you," Rousey told ESPN The Magazine.

"All these Money people. … Money [Floyd] Mayweather, Money [Conor] McGregor. I see they’re trying to do an angle or whatever.

"People buy it. The worship of money in our society is so deep. But just because that’s the easiest way to keep people’s attention or entertain them doesn’t mean that’s the right way.”

Rousey also said that she owes the UFC and the people around it nothing, after revealing she previously took fights at late notice and disadvantaged herself to look after the interests of others.

"I will never put my body at risk for money and views ever again," she said.

"What makes me happy is winning and being the best in the world and that’s it.

"F*** all the promotion and energy spent on anything that’s not me winning.

"And anyone who tries to tell me I owe them energy on frivolous s**t during camp out of ‘loyalty’ or ‘friendship’ deserves no loyalty from me and is no friend of mine.”

The UFC superstar also explained that her brutal knockout loss to Holm last November had a silver lining.

"That loss saved me from becoming what I hate," she said.

"One of those people who live their lives to impress everyone else," she said.

"Who put up a front for the world to admire. Who make sure every charitable act is posted and shared for their own image gain.

"Who posture and pose for people they care nothing about except for the opinion they have of them.”