Floyd Mayweather uses gay slur day after accusing Conor McGregor of racism

July 14 (UPI) -- The Floyd Mayweather - Conor McGregor press tour circus is finally over, wrapping up with a raucous rally Friday in London.

On Thursday in New York, McGregor continued to bring racial verbiage into the conversations between the two fighters. Mayweather responded by saying the McGregor was disrespecting black women and criticized McGregor for "calling black people monkeys."

On Friday, it was Mayweather who put his foot in his mouth.

Video contains NSFW language

The fighters filled SSE Wembley Arena and went punch for punch with words for a final time before their Aug. 26 bout in Las Vegas. More than 50,000 fans saw the press conferences in Los Angeles, Brooklyn, Toronto and London.

McGregor turned 29-years-old Friday.

After sporting a serpent fur coat Thursday in Brooklyn, McGregor broke out his sleek blue suit once again. The UFC star was introduced to Irish music. He entered a boxing ring at the center of the arena for some impromptu dancing before his 49-0 boxing opponent was introduced.

Mayweather, who wore TMT apparel in the first three meetings, was wearing a long sleeve tiger-striped shirt.

The duo lined up for an uncomfortably close stare down before tossing insults back-and-forth.

"We are six weeks out from the biggest fight in sporting history," McGregor said. "And I'm 29 today. Four years ago, I fought in London at a place called the HMV Forum in front of about 500 people. Now here I am, six weeks out about to quadruple my net worth with about one half a fight. I'm in shock every single day I wake up."

He then walked over to Mayweather, who was holding a phone up for a selfie.

"Man, you're 40," McGregor said. "Get that [expletive] phone out of your hand like a kid. A 40-year-old man. What the [expletive]?"

"This is my first time in a boxing ring. And in six weeks, I rule boxing."

The arena then began chanting "pay your taxes," a nod toward Mayweather's troubles with the IRS.

"This is my boxing ring. I am boxing," McGregor said, before rubbing Mayweather's head.

"I am so happy you took the hat off. What were you hiding under that thing? That little peanut head. I tried to tip it off yesterday and it was like it was glued on."

"Let's get it straight. The [expletive] is now over. Six weeks, I'm gonna sweep this floor. I'm gonna bounce his head off the canvas as well."

McGregor then tossed the microphone onto the stage floor.

"Money" Mayweather began his spiel by going around the ring and ripping McGregor's banners off of the posts. He then stepped on them and threw them on the floor.

Mayweather also took the microphones sitting in front of McGregor and UFC president Dana White, but McGregor recovered by stealing the microphones from Mayweather's entourage.

"I ain't got nothing but time. So keep screaming. Y'all cant fight for this expletive. I own Ireland. I run Ireland," Mayweather told the crowd.

"I'm a gorilla and I eat through fighters like you expletive," Mayweather said.

"Dana, you don't gotta wear no suit. I ain't gotta wear no suit. Me and you got the most money. Keep pimping this [expletive]."

Mayweather is worth about $400 million, while White is worth $500 million, according to Celebrity Net Worth.

"21 years ago, me and you [White] had a game plan," Mayweather said. "We're the smart ones when it's all said and done. We gonna take these foreign fighters and we gonna use them. We some smart Americans."

"I respect Dana White. As a matter of fact I don't just like Dana White. I love Dana White."

Mayweather continued to dance to the fans cheers and jeers, before telling a DJ to play Rich Gang's Tapout, referencing McGregor tapping out during UFC fights.

"I feel so good," Mayweather said. "I look so good. I'm undefeated. 21 year run and this all y'all got to offer? You know what, this [McGregor] a microwave meal. I'm a home cooked meal."

"You punk, you [gay slur], you [expletive]."

He then chucked McGregor's water bottle on the floor.

"You are the student. I'm the teacher. Aug. 26 I'm gonna take you to school."

"This the last stop. I'm ready to go to Ireland. Dana, can we go to Ireland? Tomorrow? I can conquer any country."

Mayweather also said he would beat McGregor in a UFC fight in the Octagon.

"When I spank you Aug. 26, I gonna make you face me in the rematch in the Octagon," McGregor said.

"You know what it's like to taste defeat. I would never taste defeat," Mayweather said.

Mayweather then tried to get the arena to sing Happy Birthday to McGregor. Instead, McGregor had the arena yell an expletive at Mayweather.

The duo met for a final pose, with their mouths inches apart.