The Ultimate Fighting Championship, or UFC, hits a milestone this Saturday
UFC 200 features some of the most popular names in mixed martial arts, but the main event, a rematch with Daniel Cormier and former light heavyweight champ Jon Jones has suffered a TKO.
Jones is out of UFC 200 because of a potential doping violation, throwing the event - and potentially his future into jeopardy
We'll talk about it with
, columnist for USA Today