Conor Anthony McGregor (born 14 July 1988) is an Irish professional mixed martial artist, professional boxer, businessman and actor. 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 simultaneous Cage Warriors (CW) Featherweight and Lightweight Champion. In 2008, McGregor began competing on the professional MMA circuit in the lightweight and featherweight divisions.
https://en.wikipedia.org/wiki/Conor_McGregor