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 Fighting Championship (CWFC) Featherweight and Lightweight Champion. In 2008, McGregor began competing on the professional mixed martial arts (MMA) circuit in the lightweight and featherweight divisions.
https://en.wikipedia.org/wiki/Conor_McGregor