ONE Championship will close 2025 with a star-studded card when ONE Friday Fights 137 delivers explosive Muay Thai and kickboxing action from Bangkok’s Lumpinee Stadium on Friday, December 19, where ONE Featherweight Muay Thai World Champion Tawanchai PK Saenchai returns to kickboxing in a three-round showdown against highly touted Chinese spoiler Liu Mengyang.

The high-stakes main event was originally slated for ONE Friday Fights 126 in September, yet an injury forced the Thai megastar to withdraw while prompting Liu to face Shadow Singha Mawynn instead. The Chinese standout impressed that evening by dropping the decorated Thai in round two before earning a unanimous decision victory. Now he steps into an even tougher test against Tawanchai, who’s determined to push his two-sport ambitions while defending his reputation across multiple disciplines.

Bantamweight Muay Thai takes center stage with three thrilling battles as well. Kulabdam Sor Jor Piek Uthai faces PTT Apichart Farm after riding four straight wins including victories over big names like John Lineker and Felipe Lobo. The Thai striker aims for his 12th promotional victory to move closer toward the coveted $100,000 contract, yet PTT proves equally driven after alternating between loss and victory in his first two promotional outings. The 28-year-old Team Mehdi Zatout representative dropped a split decision to Elies Abdelali in June before rebounding strongly with razor-close victory over Alessio Malatesta three months later.

Seksan Or Kwanmuang meets Pakorn PK Saenchai for the third time, reigniting a rivalry dating back to 2014. Seksan won their first meeting by decision, only for Pakorn to avenge the result a month later in a rematch. With one win apiece and more than a decade passed, they’ll finally settle the score on the global stage.

Thai technician Yod-IQ Or Pimolsri battles Russian powerhouse Elbrus Osmanov in the third bantamweight clash. Yod-IQ rides an eight-fight winning streak while accumulating 11 promotional victories, but Osmanov has transitioned seamlessly into Muay Thai after a strong 6-1 kickboxing run. The Russian star knocked out Kampeetewada Sitthikul in the first round at ONE Friday Fights 117 before dominating former ONE World Title challenger Saemapetch Fairtex for a unanimous decision at ONE Friday Fights 125.

Former two-sport, two-division ONE World Champion Sam-A Gaiyanghadao meets fellow Thai knockout artist Jaosuayai Mor Krungthepthonburi in strawweight Muay Thai. Sam-A reasserted his class at ONE Friday Fights 126 with a unanimous decision victory over Thway Lin Htet, while Jaosuayai seeks to rebound from a narrow decision loss to Akif Guluzada at ONE Fight Night 36 in October. The setback snapped his five-fight winning streak, which included four knockouts over elite names like Nakrob Fairtex and Denis Puric. Dropping to strawweight after spending his entire ONE career at flyweight, he aims to spark another dominant run where the winner could find himself within reach of the ONE World Title picture.

Number five-ranked Jo Nattawut looks to defend his featherweight Muay Thai position against surging Iranian striker Mohammad Siasarani, who arrives with a three-fight winning streak. Nattawut searches for a return to the form that made him a perennial contender after his own four-fight surge stalled, as the red-hot 23-year-old Siasarani aims continuing his ascent toward a main roster deal.

Strawweight kickboxing features Zhang Peimian versus Thongpoon PK Saenchai. The 22-year-old Chinese striker hopes to revive momentum after two consecutive setbacks following an explosive first two promotional victories. He’ll meet fan favorite Thongpoon, who went undefeated in his first five ONE bouts before hitting turbulence with three underwhelming results in his last four fights. The 28-year-old Thai looks to restore his reputation as one of the promotion’s most entertaining athletes.

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