UFC Fight Night 139: Korean Zombie vs Rodriguez was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on November 10, 2018 at Pepsi Center in Denver, Colorado, United States. A featherweight bout between former UFC Featherweight Championship challenger Chan Sung Jung and Yair Rodríguez served as the event headliner.

UFC Fight Night 176: Overeem vs. Sakai was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on September 5, 2020 at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States. A heavyweight bout between the 2010 K-1 World Grand Prix Champion, former Strikeforce Heavyweight Champion and UFC Heavyweight Championship challenger Alistair Overeem and Augusto Sakai served as the event headliner.