Live stream: Floyd Mayweather, Conor McGregor press conference in London

Warning: Video may contain profane language.

In just a little over six weeks, Floyd Mayweather and Conor McGregor will finally step in the ring in Las Vegas.

But before that, the two world-class fighters have embarked on a worldwide, four-day promotional tour this week, which concludes Friday in London. Their jaunt started in Los Angeles on Tuesday, continued in Toronto on Wednesday and took them to Brooklyn, N.Y., on Thursday. 

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