Naoya Inoue and Junto Nakatani thrilled a packed Tokyo Dome crowd on Saturday night atop a stacked bill of Japanese talent.
'The Monster' kept his perfect professional record and undisputed super-bantamweight title with victory over rival 'Big Bang'.
It came as Inoue's brother, Takuma, also retained his WBC bantamweight belt in a gripping contest against Kazuto Ioka.
Elsewhere, Yoshiki Takei got back to winning ways too against Dekang Wang, even as the ex-title holder was made to work.
Relive the full fight highlights here.
The WBO world heavyweight title is on the line for Fabio Wardley and Daniel Dubois on May 9, only on DAZN PPV. Buy as a one-off PPV or included, along with Usyk vs Verhoeven (May 23), with a DAZN Ultimate Tier subscription.