Roberto ‘Satoshi’ Submits Tofiq Musayev, Claims Vacant Lightweight Crown at Rizin 28

By Tristen Critchfield Jun 13, 2021


Roberto de Souza can now call himself Rizin Fighting Federation’s inaugural lightweight king.

The Brazilian jiu-jitsu ace known as “Satoshi” claimed the vacant 155-pound belt with a quick submission victory against lightweight grand prix winner Tofiq Musayev at Rizin 28 at the Tokyo Dome in Tokyo, Japan on Sunday. De Souza (12-1, 5-1 Rizin) has finished his last three opponents within the Japanese promotion inside of a round.

The 31-year-old Bonsai Jiu-Jitsu representative wasted little time in attempting to take the action to the mat. Although Musayev (18-4, 5-1 Rizin) denied his opponent’s first takedown attempt, he couldn’t remain upright for long. De Souza was able to ground the Azerbaijan native on his second try and then secured a triangle choke after ending up on bottom position to earn the tapout 72 seconds into Round 1.



In the evening’s official main event, former KSW champion Kleber Koike Erbst (28-5-1, 3-0 Rizin) rendered Mikuru Asakura (14-3, 1 NC, 8-2 Rizin) unconscious with a triangle choke in a featherweight contender’s bout. Erbst finished the Tri-Force Akaska product 1:49 into the second frame for his fourth consecutive victory.

Erbst appeared to be hurt on the feet early on, but he later sucked Asakura into the clinch, where he landed a series of elbows before pulling guard. From there, he transitioned the fight-ending maneuver until his opponent went to sleep. The win presumably earns Erbst a shot against reigning Rizin featherweight king Yutaka Saito.




Rizin 28 also included four bouts in the opening round of the organization’s bantamweight grand prix. Former 135-pound champion Kai Asakura (17-3, 9-2 Rizin) dispatched Shuto Watanabe (22-6-6, 1-2 Rizin) via ground-and-pound at the 3:22 mark of Round 1, while Naoki Inoue (16-2, 4-0 Rizin) vanquished Shintaro Ishiwatari (26-9-4, 4-3 Rizin) with a soccer kick 2:01 into the opening frame. In the other two opening round matchups, Hiromasa Ougikubo (22-5-2, 4-2 Rizin) outpointed Takeshi Kasugai (26-8-1, 0-1 Rizin), and Yuki Motoya (28-9, 5-4, 1 NC Rizin) took a decision against Ryo Okada (17-5-3, 0-1 Rizin).

In other action: Yutaka Saito (20-4-2, 3-0 Rizin) earned a split-decision triumph against Vugar Karamov (15-4, 1-1 Rizin) at featherweight; Shoma Shibisai (7-2, 1-1 Rizin) submitted Tsuyoshi Sudario (3-1, 3-1 Rizin) with a rear-naked choke 1:39 into Round 3 of a heavyweight bout and Satoshi Yamasu (12-6, 1-1 Rizin) captured a split verdict against Noah Bey (0-1, 0-1 Rizin) at 160 pounds.

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