By Carlos Boogs

UFC President Dana White erupted at the post fight press conference to UFC 210 in Buffalo, New York - after being pressed on the recent claims that he's demanding a huge bulk of money from UFC superstar Conor McGregor to go forward with a possible boxing match against Floyd Mayweather Jr.

McGregor is pushing hard to fight Mayweather in a boxing match - but in order to do so, the outspoken Irish fighter must receive approval from the UFC, who have McGregor under an exclusive binding contract. 

Mayweather, who retired in September 2015, announced last month that he was officially coming back to the ring - but only for the sole purpose of facing McGregor.

Last month, BoxingScene.com had spoken to Top Rank's CEO Bob Arum - who claimed the UFC was demanding 50% of McGregor's money. McGregor was a big help in Top Rank's event in New York City last month, where a show was centered around the pro debut of Arum's hot prospect Michael Conlan - who is also McGregor's good friend.

And then Floyd Mayweather's uncle - retired fighter and trainer Jeff Mayweather - made a big claim that the UFC was trying to take 80% of McGregor's money to move forward with a Floyd Mayweather fight.

“80-20 percent,” Jeff Mayweather told Eyes on the Game’s Helen Yee.  “(Conor) would have to take 20 percent, if he’s allowed to fight. And the one thing is that Dana’s his boss. He’ll still make more money than he ever did (with that 20 percent), but at the same time, that’s very tough pill to swallow.

“If somebody tells you ‘I’m gonna take 80 percent of your money, and you’re the one that’s fighting for it, that’s still a tough pill to swallow. Even if you made more money than you ever did. But, it is what it is.”

When White was questioned about those statements, he lashed out at Jeff Mayweather, and especially in the direction of his long-time nemesis Arum.

"What I would like to clarify is all the bullsh*t about the 80 f***ing 20 split,” White said at the UFC 210 post-fight press conference. “Jeff Mayweather? Come on, Jeff. Me and Jeff go way back. Jeff, are you the spokesman now for f***ing Team Mayweather? And Bob Arum? You piece of sh*t. F*** you, too."

"What do they know about this fight? You want to know what they know about this fight? Nothing. Believe me, we’ve had preliminary talks with Conor and I’m in a good place with Conor and we’re going to meet in New York when he has his baby."