UFC 266: Volkanovski vs. Ortega was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on September 25, 2021 at the T-Mobile Arena in Paradise, Nevada, part of the Las Vegas Metropolitan Area, United States. A UFC Featherweight Championship bout between current champion Alexander Volkanovski and former title challenger Brian Ortega headlined the event.
Alexander Volkanovski
Brian Ortega
Valentina Shevchenko
Lauren Murphy
Robbie Lawler
Nick Diaz
Curtis Blaydes
Jairzinho Rozenstruik
Jéssica Andrade
Cynthia Calvillo
Merab Dvalishvili
Marlon Moraes
Dan Hooker
Nasrat Haqparast
Chris Daukaus
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