Sinsamut “Aquaman” Klinmee has grown out a beard, adopted a new nickname, and packed his bags for Japan alongside his closest friends. Now he needs the result to match the mood.
The former ONE World Title challenger faces decorated Japanese kickboxer Shintaro Matsukura, who makes his promotional debut, in a lightweight kickboxing showdown at ONE SAMURAI 4 on Saturday, October 17, live from Tokyo’s Ariake Arena.

Competing in Japan has long sat at the top of the 30-year-old Pattaya native’s bucket list. He has felt the country’s electric martial arts culture while cornering teammates, and he refuses to let a partisan Tokyo crowd unsettle him.
“Whenever I fight abroad, I don’t feel any pressure at all. My trainer always tells me that the ring is our home. It doesn’t matter where it’s located,” Sinsamut said.
“Whatever happens in the crowd doesn’t matter. It’s just the three of us in there — me, him, and the referee. Home-court advantage means nothing once the bell rings.”
Matsukura, 34, is a former K-1 Champion from Team Vasileus who spent time guiding stablemates such as Takeru Segawa and Masaaki Noiri before returning to competition himself. Sinsamut, meanwhile, has won just one of his last five outings.
His only previous kickboxing appearance ended in a first-round knockout loss to Nieky “The Natural” Holzken at ONE Friday Fights 100 in March 2025, three years after he had stopped the Dutch icon. He most recently dropped a unanimous decision to George “G-Unit” Jarvis in March.

Strength in numbers is helping him through. Crewmates Nabil Anane and Mohammad Siasarani compete on the same card, and Sinsamut has grown his beard as a promise to ONE Flyweight Muay Thai World Champion Asadula Imangazaliev and #4-ranked contender Abdulla Dayakaev, jokingly dubbing himself “Sinsamut-daev.”
The Venum Training Camp and Team Mehdi Zatout athlete has big plans for the night if everyone delivers.
“Going to fight alongside the whole ‘sukiyaki’ [hot pot] gang feels awesome! Being there together as a crew means that if we all win our fights, man, we’re having a massive celebration,” he said.
“I’m going to go out there and get this win, and then we’re gonna blow up the sukiyaki pot in Japan. Let’s make it explode!”
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