UFC Fight Night 181: Hall vs. Silva was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on October 31, 2020 at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States. A middleweight bout between former UFC Middleweight Champion Anderson Silva and Uriah Hall served as the headliner.

UFC 261: Usman vs. Masvidal 2 was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on April 24, 2021 at VyStar Veterans Memorial Arena in Jacksonville, Florida, United States.

A heavyweight bout between former UFC Heavyweight Championship challenger Derrick Lewis and Sergey Spivak was expected to headline the event. However, while the event was in progress, Lewis was forced to withdraw due to non-COVID, non-weight cutting illness and the bout was cancelled. As a result, Kennedy Nzechukwu and Ion Cuțelaba instead headlined the event. Kennedy Nzechukwu vs. Ion Cuțelaba (Light Heavyweight) Chase Sherman vs. Waldo Cortes-Acosta (Heavyweight) André Fialho vs. Muslim Salikhov (Welterweight) Jack Della Maddalena vs. Danny Roberts (Welterweight) Charles Johnson vs. Zhalgas Zhumagulov (Flyweight)

Legacy Fighting Alliance 24: Frincu vs. Millender was the twenty-fifth event of Legacy Fighting Alliance and took place on October 13, 2017. It aired on AXS TV.

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.