Rizin 33 Peak Mastery Reviews

Rizin 33 was a Combat sport event held by Rizin Fighting Federation on December 31, 2021, at the Saitama Super Arena in Saitama, Japan.

A Rizin Lightweight Championship title bout between reigning champion Roberto de Souza and title challenger Yusuke Yachi was scheduled as the event headliner.
Rizin Bantamweight Grand Prix Semi-final bouts were scheduled to take place during the event.

Rizin Fighting Federation (Rizin FF) is a Japanese mixed martial arts organization created in 2015 by the former Pride Fighting Championships and Dream Stage Entertainment president Nobuyuki Sakakibara.