FILE - In this Sept. 27, 2014, file photo, Conor McGregor, left, kicks Dustin Poirier during their mixed martial arts bout in Las Vegas. McGregor returns from a year-long layoff for a rematch against Poirier in the promotions's first pay-per-view of the year, at UFC 257 on Jan. 24 at Abu Dhabi. (AP Photo/John Locher, File)
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