Jon Jones (born July 19, 1987) is an American professional mixed martial artist who is currently signed with the Ultimate Fighting Championship (UFC). He is the current and three-time UFC Light Heavyweight Champion, having won the undisputed championship twice and interim championship once, and the youngest champion in UFC history, winning his first UFC world championship at age 23. Jones is widely regarded as one of the greatest professional fighters of all-time. He is the younger brother of former National Football League (NFL) player Arthur Jones and the older brother of current NFL player Chandler Jones.
Jones has never been defeated for a championship in MMA competition and many consider his lone professional loss, a disqualification against Matt Hamill, a bad referee decision. Jones first lost his status as UFC champion in 2015 when the UFC stripped his title and suspended him after he was arrested on felony hit-and-run charges. He returned to the UFC in 2016 to win the Interim UFC Light Heavyweight Championship against Ovince Saint Preux, but was stripped of the title after failing a United States Anti-Doping Agency (USADA) drug test just days before his scheduled UFC 200 bout against Daniel Cormier. He was suspended for a year after USADA ruled the positive test came from male enhancement pills, but still faulted Jones for negligence.