UFC on ESPN 23: Reyes vs. Prochazka

UFC on ESPN 23: Reyes vs. Procházka was a mixed martial arts event produced by the Ultimate Fighting Championship. The event took place on May 1, 2021, at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas metropolitan area, United States. The headlining light heavyweight bout featured former UFC Light Heavyweight Championship challenger Dominick Reyes facing Jiří Procházka, the former Rizin Light Heavyweight Champion.