ONE Championship will kick off its 2025 U.S. primetime event schedule with ONE Fight Night 27, airing live from Lumpinee Stadium in Bangkok, Thailand, on 11 January. The event will showcase nine thrilling bouts across multiple disciplines.
In the main event, undefeated ONE Featherweight MMA World Champion Tang Kai battles the also unbeaten Akbar Abdullaev. The Kyrgyzstani fighter, however, is not eligible to win the belt after missing both weight and hydration earlier.

If Tang defeats Abdullaev, he will retain his title and maintain his perfect record in the promotion. While it's not an ideal start for Abdullaev's dream of claiming World Title glory, he will still look to defeat the champion in their catchweight bout.
In a ONE Women's World Title encounter, two of the most dangerous atomweight fighters - Denice Zamboanga and Alyona Rassohyna - will go head-to-head for the ONE Interim Atomweight MMA World Title. The winner of this fight will secure a unification match against the undisputed queen Stamp Fairtex.
Apart from these high-profile bouts, the event will feature the return of John Lineker for his third consecutive Muay Thai fight, while Tommy Langaker and Dante Leon will battle it out in a catchweight submission grappling contest.