Casey O'Neill (born 7 October 1997) is a Scottish and Australian professional mixed martial artist.
At the age of 10 she moved with her family to Australia's Gold Coast where she attended Coombabah State High School.
[9] Her father eventually relented and allowed O'Neill to compete in her first amateur MMA fight at the age of 15 where she was soundly beaten in the first round by an opponent four years her senior.
[11] In 2019, O'Neill relocated to Phuket, Thailand to begin training at the renowned Tiger Muay Thai gym.
[12] O'Neill made her professional debut against Amira Hafizović at the Eternal MMA 43 event on 5 April 2019 and was victorious via a unanimous decision.
[13] She then secured three more wins domestically against Jada Ketley, Miki Motono, in which she missed weight by 0.2 kg and was forced to vacate her title,[14] and Caitlin McEwen before accepting her first fight overseas with the UAE Warriors promotion.
Michael Bisping, as part of the live commentary team for the broadcast, said "I don't think [Alexander] should be judging MMA.
[28] However, O'Neill withdrew in late April due to torn ACL and was replaced by Maycee Barber.