Conor Anthony McGregor (Irish: Conchúr Antóin Mac Gréagóir;[9] born 14 July 1988) is an Irish professional mixed martial artist and professional boxer who is currently signed to the Ultimate Fighting Championship (UFC). He is the reigning UFC Lightweight Champion, and former UFC Featherweight Champion. During his mixed martial arts (MMA) career, McGregor has competed as a featherweight, lightweight, and welterweight. As of 2017, McGregor is ranked 2nd on UFC's pound for pound rankings.[10]
In 2008, McGregor started his MMA career and, in 2012, he won both the Cage Warriors Featherweight and Lightweight Championships, holding both titles simultaneously before vacating them to sign with the UFC.[11] In 2015, at UFC 194, he defeated José Aldo for the UFC Featherweight Championship via knockout thirteen seconds into the first round. This was the fastest victory in UFC title fight history.[12] Upon defeating Eddie Alvarez for the UFC Lightweight Championship at UFC 205, McGregor became the first fighter in UFC history to hold titles in two weight divisions simultaneously.[13]
McGregor has established himself as the biggest pay-per-view (PPV) draw in MMA history as he has main-evented four out of the six highest selling pay-per-view events in UFC history.[14] His headline bout with Nate Diaz at UFC 202 garnered the most buys ever for an MMA PPV event.[15]