Conor McGregor says he's retiring from MMA Fox NewsConor McGregor announces surprise retirement from MMA Yahoo SportsConor McGregor tweets he’s ‘decided to retire’ from MMA MMA FightingUFC's Conor McGregor Announces Retirement from 'Mixed Martial Art' on Twitter Bleacher ReportConor McGregor makes 'quick announcement' that he's retired from MMA MMAjunkieView full coverage on Google News