Conor McGregor defeats Diego Brandao (TKO Rd 1)

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Earlier in the night…

Patrick “The Hooligan” Holohan forced Josh Sampo to submit in the first round

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And celebrated with Robbie Keane-style bow and arrow

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Cathal Pendred looked down and out against Mike King

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But somehow managed to win in the second round in what UFC President Dana White described as “one of the greatest comebacks I’ve ever seen.”

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Neil Seery scored a unanimous decision after three rounds against Phil Harris

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While ‘Stormin’ Norman Parke from Antrim stopped Naoyuki Katuni

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“Uncle Creepy” Ian McCall showed up to win Moustache of the Night — and beat Brad Pickett on a unanimous decision

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Adopted Irishman Gunnar Nelson locked in the rear naked choke to beat Zak Cummings by submission

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McGregor backs up the talk with first round knockout at sold-out O2 Arena