Conor Anthony McGregor 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 Featherweight and Lightweight Champion. Known for his counter-striking skills, striking precision and knockout power, the majority of McGregor's victories in mixed martial arts have come by way of knockout or technical knockout via punches. McGregor is the biggest pay-per-view (PPV) draw in mixed martial arts (MMA) history having headlined the five highest-selling UFC PPV.