UFC 259: Błachowicz vs. Adesanya was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on March 6, 2021 at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States. The event was headlined by a UFC Light Heavyweight Championship bout between then champion Jan Błachowicz (also former KSW Light Heavyweight Champion) and former UFC Middleweight Champion Israel Adesanya.
Jan Błachowicz
Israel Adesanya
Amanda Nunes
Megan Anderson
Aljamain Sterling
Petr Yan
Islam Makhachev
Drew Dober
Aleksandar Rakić
Thiago Santos
Dominick Cruz
Casey Kenney
Kyler Phillips
Song Yadong
Askar Askarov
Joseph Benavidez
Kai Kara-France
Rogerio Bontorin
Tim Elliott
Jordan Espinosa
Kennedy Nzechukwu
Carlos Ulberg
Sean Brady
Jake Matthews
Amanda Lemos
Lívia Renata Souza
Uroš Medić
Aalon Cruz
Trevin Jones
Mario Bautista
Joe Rogan
Jon Anik
Daniel Cormier