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On August 26, Ireland's first UFC belt holder, 28, will take on Floyd Mayweather in a multi-million-pound boxing match, a fight which is currently the talk of the entire sporting world.

Mayweather vs McGregor, a contest which was first mooted in May 2016, will be held at the T-Mobile Arena in Las Vegas, Nevada.

McGregor, the reigning UFC lightweight champion, will enter his encounter 49-0 Mayweather with no professional boxing experience to his name.

That fact has led many of the fight's critics to completely write off The Notorious' chances of causing an upset and handing Mayweather his first professional loss.

Much has been made of the Irishman's standup in recent weeks, with several boxing experts claiming to be unimpressed by the UFC superstar's style of striking.

Roach, the long-time trainer of Manny Pacquiao, is amongst that group.

“He’s fun to watch. He’s a character, but again, he’s not much of a fighter,” the legendary training told Fighthub when asked about McGregor.

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“As far as boxing goes, supposedly he went out to Wildcard West and boxed Chris Van Heerden.

"Van Heerden told me, “I killed him.’ Chris Van Heerden is a tough kid, a good boxer. He put himself in a high class."

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"I think he’s a 4-round fighter at this point."

Floyd Mayweather vs. Conor McGregor (154lbs)