Saturday, July 6, 2019, T-Mobile Arena
A UFC Light Heavyweight Championship bout between the current two-time champion Jon Jones and Thiago Santos is expected to serve 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 is expected to serve as the event co-headliner.
A bout between former UFC Heavyweight title challenger Francis Ngannou and former UFC Heavyweight Champion Junior dos Santos was scheduled to take place at this event. The matchup was originally scheduled to take place in September 2017 at UFC 215, but dos Santos pulled out of that event, citing a failed drug test. However, it was reported on May 21, 2019 that the bout was being moved to headline UFC on ESPN 3 after Tyron Woodley was forced to pull out of his rematch due to a hand injury with Robbie Lawler.
A featherweight bout between former Strikeforce and WEC Lightweight Champion (as well as former UFC Lightweight Championship challenger) Gilbert Melendez and Arnold Allen has been scheduled for the event. The matchup was originally scheduled to take place in November 2018 at The Ultimate Fighter 28 Finale, however Melendez pulled out of the fight citing an injury.
A bout between The Ultimate Fighter: Latin America bantamweight winner Alejandro Pérez and Yadong Song is scheduled to take place at this event. The matchup was originally scheduled to take place in March 2019 at UFC 235, but Song pulled out of the fight for undisclosed reasons and was replaced by Cody Stamann.
Official fight card
|Light Heavyweight||Jon Jones||vs.||Thiago Santos|
|Women's Bantamweight||Amanda Nunes||vs.||Holly Holm|
|Welterweight||Jorge Masvidal||vs.||Ben Askren|
|Light Heavyweight||Jan Błachowicz||vs.||Luke Rockhold|
|Welterweight||Diego Sanchez||vs.||Michael Chiesa|
|Featherweight||Gilbert Melendez||vs.||Arnold Allen|
|Bantamweight||Sean O'Malley||vs.||Marlon Vera|
|Middleweight||Edmen Shahbazyan||vs.||Jack Marshman|
|Women's Bantamweight||Julia Avila||vs.||Melissa Gatto|
When: Saturday, July 6, 2019
Where: T-Mobile Arena
*Fights labeled as "may not be broadcast" are scheduled to take place before the live broadcast begins. These pre-recorded fights are inserted into the broadcast if time permits. However, due to broadcast time constraints some of these undercard bouts may not be seen on a broadcast. These additional bout can be found as bonus footage on the event DVD.