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)

FILE - In this Nov. 2, 2018, file photo, UFC president Dana White speaks at a news conference in New York. The first of three straight fight nights at Etihad Arena on Abu Dhabi’s Yas Island kicks off Saturday, Jan. 16, when Max Holloway fights Calvin Kattar in a 145-pound bout in the main event of the first combat sports card aired on ABC since 2000. In UFC 257 on Jan. 24, Conor McGregor returns from a year-long layoff for a rematch against Dustin Poirier in the promotions's first pay-per-view of the year. (AP Photo/Julio Cortez, File)