Sitthichai Signs Multi-Fight Deal with Japanese Promotion KNOCK OUT

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Aug 29, 2025
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1 min read
Sitthichai with his KNOCK OUT contract.
Sitthichai with his KNOCK OUT contract.

The former GLORY champion has found a new home.

It's been a quick turnaround for Thailand's Sitthichai. Japanese promotion KNOCK OUT has announced that the former GLORY champion and ONE athlete has signed a multi-fight deal. Like ONE Championship, KNOCK OUT offers fighters three rulesets: Kickboxing, Muay Thai, and MMA. 

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“📣KNOCK OUTからの重大発表🔥ONEフェザー級キック世界GP準優勝元GLORY世界ライト級王者#シッティチャイシッソンピーノン KNOCK OUTと複数試合契約を結びました!シッティチャイのKNOCK OUT参戦をお楽しみに!ただいま #KO56 @UNEXT_fight で視聴!🤛ここから▶️https://t.co/jT2dwGEQRR… pic.twitter.com/foguroYc6j”

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An unexpected move, as KNOCK OUT’s lightweight division has been largely inactive in recent years. Sitthichai has emphasized that he will focus on kickboxing going forward — the last time the belt at that weight was contested was four years ago, when Kaito Ono defeated Hinata, before the promotion merged with 'Rebels'.

Nonetheless, KNOCK OUT has been building momentum, landing major acquisitions, including former K-1 champions Taito Gunji and Kongnapa.

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