Floyd Mayweather and Conor McGregor are in London for the final stage of their much-hyped tour - hours almost coming to blows on stage in New York.
The pair landed this afternoon on identical private Zetta Jet planes - but not the same jet as first reported - on their world tour to promote their super fight on August 26 in Las Vegas.
Tensions have simmered all week in Los Angeles, Toronto and New York with the fighters engaging in intense trash talk which threatened to spill over last night.
And fans are expecting another bad-tempered clash at the SSE Wembley Arena from 7pm tonight. Follow the live stream and blog on the press conference here.
McGregor attempted to defend himself from racist accusations levelled last night after telling Mayweather, "Dance for me, boy,".
He insisted he was "half black from the belly down" and that it was a "present for my beautiful, black female fans."
Outrage immediately followed with Mayweather slamming the Notorious for his remarks.
"We can't judge a man for what we hear from others, we must judge a man for how he treats us," Mayweather said.
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"He totally disrespected my daughter, the mother of my daughter, he disrespected black women and he called black people monkeys.
"I'm proud to be a black man and to be an American.
"He can't do that. You cannot disrespect black women. You cannot disrespect black people. Period."
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McGregor later responded to the outrage, claiming he does "not even see colour."
"That doesn’t sit well with me," McGregor said. "I am a very multi-cultured individual.
"I do not have any ill feeling toward anyone. I do not even see colour.
"I just wanted to say something that I could have a little fun with.
"I just wanted to play with it and address it in my own little way.
"It’s stupid and it’s ridiculous, that’s basically what I was getting at."