Add Yahoo as a preferred source to see more of our stories on Google. FILE - Jon Jones speaks during the UFC 152 pre-fight press conference at the Real Sports Bar and Grill in Toronto, Sept. 20, 2012.

UFC heavyweight champion Jon Jones was arrested Saturday on allegations that he assaulted and threatened to kill a drug testing agent, police in New Mexico said. The case was prompted by a complaint ...

LOS ANGELES (CBSLA.com/AP) — Jon Jones has denied using any performance-enhancing substances after a positive drug test knocked him out of the main event at ...

Jon Jones continues to split the MMA community. The former UFC heavyweight and light heavyweight champion is regarded by many as the leading contender for greatest-of-all-time status in mixed martial ...