Conor Anthony McGregor (Irish: Conchúr Antóin Mac Gréagóir; born 14 July 1988) is an Irish professional mixed martial artist and professional boxer. He is a former Ultimate Fighting Championship (UFC) Featherweight and Lightweight Champion, becoming the first UFC fighter to hold UFC championships in two weight classes simultaneously. He is also a former Cage Warriors Featherweight and Lightweight Champion.

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