Seika Izawa, Jessica Aguilar among additions to RIZIN 37 atomweight grand prix

RIZIN Fighting Federation returns July 31 to the Saitama Super Arena with an atomweight grand prix as one of the attractions, and the tournament includes UFC and Bellator veteran Jessica Aguilar.

A former champion in WSOF, Aguilar returns to action nearly two years after her most recent bout, a split decision setback to Danielle Taylor at XFC, to face Ayaka Hamasaki.

Aguilar is looking to bounce from a losing skid that includes defeats to Zhang Weili and Marina Rodriguez in the UFC. Hamasaki, a former RIZIN titleholder, enters the ring on a two-fight skid with back-to-back upsets to Seika Izawa.

Izawa, the division champion, is also set to compete in the tournament, facing undefeated Brazilian Laura Fontoura. The other quarterfinals feature Kanna Asakura vs. Si Woo Park and Rena Kubota vs. Anastasiya Svetkivska.

The latest addition to the card is Marcos Souza, brother of RIZIN lightweight champion Roberto Satoshi, who makes his return to MMA two and a half years after a 87-second knockout in RIZIN to battle UFC and ONE veteran Daichi Abe.

Check the updated RIZIN 37 card below.

Naoki Inoue vs. Kenta Takizawa
Ulka Sasaki vs. Yuki Nakahara
Yuki Motoya vs. Shinobu Ota
Yushi vs. Haruki
Hideki Sekine vs. Tsuyoshi Sudario
Kota Miura vs. Felipe Masoni
Hideo Tokoro vs. Makoto Takahashi
Vugar Karamov vs. Sora Yamamoto
Marcos Souza vs. Daichi Abe
Kanna Asakura vs. Si Woo Park
Ayaka Hamasaki vs. Jessica Aguilar
Rena Kubota vs. Anastasiya Svetkivska
Seika Izawa vs. Laura Fontoura