After winning silver medal at the Olympics, Jones made his professional boxing debut in 1989 and was rapidly acknowledged as a unique talent, an extremely accomplished boxer with exceptionally rapid reflexes, a boxer with great speed and the potential to put his punches together with flawless combinations. He won his first major title in 1993 in Washington. D.C. by winning IBF(International Boxing Federation) middleweight belt. As he advanced in his career he gained weight and won titles at light heavyweight and super middleweight.
Jones then advanced to heavyweight and on 1st March 2003 in Las Vegas, Nevada, Jones created history by becoming only the second boxer to win both light heavyweight and a heavyweight belt. In 2011 he won the Universal Boxing Organization Inter-Continental Cruise weight title in 2011.
Apart from boxing, he is also known for his singing skills. He made his singing debut in 2001 with the album titled Round One: The Album and the debut single, "Y'All Must've Forgot". He has also acted in films like The Devil’s Advocate, Enter The Matrix and Southpaw amongst others. Presently he is doing commentary for boxing and promoting other boxers and mixed martial arts competitors through his company, Square Ring Promotions.