Jonathan Dwight "Jon" Jones is an American professional mixed martial art sports combatant and former UFC Light Heavyweight Champion. Jon Jones is regarded as the best MMA competitor in the world and considered one of the greatest fighters of all time. Winning the title in March 2011, at the age of 23, he became the youngest champion in UFC history. But, after being arrested on a felony count of hit-and-run driving, Jones was stripped of his title and was removed from the official rankings in April of 2015. Since then, in October of 2015, Jones has been reinstated as a competitor in the UFC. Unfortunately, he has failed his last drug screen.