Overview:UFC 239: Jones vs. Santos was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on July 6, 2019 at T-Mobile Arena in Paradise, Nevada. A UFC Light Heavyweight Championship bout between current two-time champion Jon Jones and Thiago Santos served as the event headliner. A UFC Women's Bantamweight Championship bout between the current champion Amanda Nunes (also current UFC Women's Featherweight Champion) and former champion Holly Holm served as the event co-headliner.