Dubliner McGregor needed less than a minute to dispatch Donald Cerrone in Las Vegas
have not fought since his loss to Khabib Nurmagomedov 15 months ago.
Cerrone was covered up as the rights and lefts rained down on him, prompting referee Herb Dean to call a halt to a brief one-sided contest within the first minute of the opening round. Encore describes itself as "the hottest ticket in town" and "the party doesn't stop" on their website and was last year named the Las Vegas Day Club of the Year.
McGregor was unsurprisingly the centre of attention with camera phones flashing in his face - with everyone in the club wanting to get a snap of the comeback kid.
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