ONE Friday Fights 137 was supposed to be the coronation of a champion chasing two-sport glory.
Instead, it became the night a 22-year-old Chinese phenom walked into Bangkok’s Lumpinee Stadium, detonated a bomb in the main event, and walked out with the entire martial arts world saying the same thing:
“The Spirit Dragon has arrived.”
With one ruthless calf kick — the fourth he landed — Liu Mengyang shattered the script, stunned millions watching worldwide, and dropped ONE Featherweight Muay Thai World Champion Tawanchai PK Saenchai in just 52 seconds of kickboxing chaos.
And on his Instagram (@liumengyang00), the words in his bio suddenly felt prophetic:
“I came. I saw. I conquered.”
The Night ONE Friday Fights 137 Erupted
ONE Championship’s return to Lumpinee on December 19 delivered an international showcase of Muay Thai and kickboxing talent — athletes battling for pride, legacy, and even US$100,000 contracts with the promotion.
The card was stacked:
- Kulabdam Sor Jor Piek Uthai vs. PTT Apichart Farm
- Suablack Tor Pran49 vs. Pakorn PK Saenchai
- Former ONE World Champion Sam-A returning
- Rising stars from Japan, Canada, and Thailand shining throughout the undercard
But all eyes were locked on the main event.
Tawanchai — newly married, a new father, and already a Muay Thai world champion — was expected to glide through Liu on his way to a kickboxing title run.
Instead, he walked into a young powerhouse who promised a knockout all week… and delivered instantly.
52 Seconds That Changed the Division
Tawanchai opened strong, snapping Liu back with a stiff teep that sent him briefly to the canvas.
The Thai superstar looked calm, sharp, in control.
Then Liu bit down and went hunting.
He pressured forward with a venomous right hand, chopped at Tawanchai’s lead leg, and read every adjustment like he’d studied the champion for years.
Kick one.
Tawanchai flinched.
Kick two.
The crowd murmured.
Kick three.
The Thai’s balance shifted.
Kick four.
Tawanchai collapsed — silent, stunned, unable to rise before the referee’s count.
Lumpinee Stadium — one of the loudest fight venues on Earth — fell completely quiet.
TKO. Round 1. 0:52.
The Spirit Dragon roared.
Aftermath: Tawanchai Injured, Division in Turmoil
Tawanchai left the ring on a stretcher and underwent surgery shortly after the event.
Thai media report a suspected broken leg, which could sideline him for months.
The injury immediately sparked division-wide questions:
- Will ONE create an interim featherweight Muay Thai title?
- Do Shadow Singha Mawynn or Nico Carrillo step in?
- Does Liu now jump directly into contention for Superbon’s kickboxing throne?
One thing is certain:
The balance of power in the featherweight division just shifted — violently.
The Spirit Dragon’s Rise: From Prospect to Problem
Liu’s resume now sits at 35-7, and in the last year he has:
✔️ Knocked off Masaaki Noiri
✔️ Shocked Shadow Singha Mawynn
✔️ Flattened Tawanchai in under a minute
At 22 years old, the Shunyuan Fight Club star isn’t a “prospect” anymore.
He’s a division killer.
He’s a title threat.
He’s the new face of Chinese striking in ONE Championship.
And on December 19, he proved that even the brightest stars can be extinguished with one perfectly-placed kick.
