After a stirring 2021 campaign in which he won and defended the UFC lightweight title by finishing Michael Chandler and Dustin Poirier, Charles Oliveira begins his second year as champion on May 7 as he defends his crown against former interim titlist Justin Gaethje in the main event of UFC 274. Living up to his nickname "The Highlight" every time he steps into the Octagon, Gaethje will attempt to follow up his Fight of the Year win over Michael Chandler by taking Oliveira's title in a bout that is expected to set the bar high as 2022's best. Plus, UFC strawweight champion Rose Namajunas gets a change to avenge a bitter defeat when she faces top contender Carla Esparza in a long-awaited rematch of the top 115-pound fighters in the the world.

UFC on ESPN 48: Strickland vs. Magomedov was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on July 1, 2023, at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States. A middleweight bout between Sean Strickland and Abusupiyan Magomedov headlined the event.

The PFL 1 mixed martial arts event for the 2024 season of the Professional Fighters League was held on April 4, 2024, at the Boeing Center at Tech Port in San Antonio, Texas, United States. This marked the first regular-season event of the tournament and included fights in the Women's Flyweight and Heavyweight divisions. The event was headlined by a heavyweight bout between former interim Bellator Heavyweight Champion Valentin Moldavsky and 2022 PFL heavyweight winner Ante Delija.

Derrick Lewis vs. Sergey Spivak (Heavyweight) Devin Clark vs. Da Un Jung (Light Heavyweight) Marcin Tybura vs. Blagoy Ivanov (Heavyweight) Doo Ho Choi vs. Kyle Nelson (Featherweight) Yusaku Kinoshita vs. Adam Fugitt (Welterweight)

UFC Fight Night 133: dos Santos vs. Ivanov was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on July 14, 2018 at CenturyLink Arena in Boise, Idaho, United States. A heavyweight bout between former UFC Heavyweight Champion Junior dos Santos and former WSOF Heavyweight Champion Blagoy Ivanov served as the event headliner.

UFC Fight Night 146: Lewis vs. dos Santos was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on March 9, 2019 at Intrust Bank Arena in Wichita, Kansas. A heavyweight bout between former UFC Heavyweight Champion Junior dos Santos and former title challenger Derrick Lewis served as the event headliner.

UFC on ESPN 9: Woodley vs. Burns was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on May 30, 2020 at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States. A welterweight bout between former UFC Welterweight Champion Tyron Woodley and Gilbert Burns served as the event headliner.

UFC 238: Cejudo vs. Moraes was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on June 8, 2019 at the United Center in Chicago, Illinois. The event was headlined by a UFC Bantamweight Championship bout for the vacant title between 2008 Olympic gold medalist in freestyle wrestling and current UFC Flyweight Champion Henry Cejudo and former WSOF Bantamweight Champion Marlon Moraes.

UFC 244: Masvidal vs. Diaz was a mixed martial arts pay-per-view event produced by the Ultimate Fighting Championship that took place on November 2, 2019 at Madison Square Garden in New York City, New York, United States. A welterweight bout between Jorge Masvidal and former UFC Lightweight Championship challenger and The Ultimate Fighter 5 lightweight winner Nate Diaz headlined the event. After his UFC 241 win against former lightweight champion Anthony Pettis, Diaz proclaimed himself the "baddest motherfucker in the game" and issued a challenge to Masvidal. When the fight was scheduled, Dana White announced that a celebratory "baddest motherfucker" belt, embossed "BMF," would be awarded to the winner.