8/26/2017 12:10:20 PM

McGregor vows Mayweather knockout as moment of truth nears

McGregor vows Mayweather knockout as moment of truth nears

Las Vegas, United States: Mixed martial arts star Conor McGregor vowed to knock out boxer Floyd Mayweather on Friday as a horde of Irish fans descended on Las Vegas for the trash-talking rivals' cross-combat super-fight.

McGregor, 29, will carry a substantial weight advantage into Saturday’s 12-round boxing contest at the T-Mobile Arena after a raucous weigh-in that saw him face-off with Mayweather for the final time before fight-night.

With waves of green-shirted fans in a crowd of around 6,000 roaring their support for the Irish superstar, McGregor tipped the scales at 153 pounds, well inside the 154-pound limit.

Former welterweight champion Mayweather, 40, who has emerged from a two-year retirement to take on MMA star McGregor, weighed in at 149.5 pounds.

The naturally bigger McGregor -- who screamed into Mayweather's face as the two men went nose-to-nose -- said he expects to enter the ring at closer to 170 pounds.

Saturday's one-off bout is projected to be the richest fight in history, with Mayweather poised to earn as much as $200 million and McGregor potentially pocketing around $100 million.

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