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Conor McGregor looks on before fighting Jose Aldo in a featherweight championship mixed martial arts bout at UFC 194, Saturday, Dec. 12, 2015, in Las Vegas. (AP Photo/John Locher)

Conor McGregor looks on before fighting Jose Aldo in a featherweight championship mixed martial arts bout at UFC 194, Saturday, Dec. 12, 2015, in Las Vegas. (AP Photo/John Locher)