RIZIN 4 (2016)
Rizin World Grand-Prix 2016: Final Round was a mixed martial arts event held by the Rizin Fighting Federation on December 31, 2016 at the Saitama Super Arena in Saitama, Japan.
Rizin World Grand-Prix 2016: Final Round was a mixed martial arts event held by the Rizin Fighting Federation on December 31, 2016 at the Saitama Super Arena in Saitama, Japan.