ONE Friday Fights 137 Full Results: Liu Mengyang Stuns Tawanchai

"Spirit Dragon" Liu Mengyang pulled off a massive upset at ONE Friday Fights 137 on Friday, 19 December, stopping reigning ONE Featherweight Muay Thai World Champion Tawanchai PK Saenchai in the opening round of their featherweight kickboxing headliner at Bangkok's iconic Lumpinee Stadium.

The 22-year-old Chinese sensation needed less than a minute to silence the raucous crowd, systematically attacking Tawanchai's lead leg with brutal inside leg kicks that accumulated devastating damage with surgical precision.

Tawanchai wasted no time asserting himself, firing his trademark teep to force Liu backwards and briefly sit him down to the canvas in the opening exchanges, seemingly taking early control.

The Chinese spoiler answered immediately, stepping

in with a sharp right hand that caught Tawanchai clean and drove the Muay Thai king back towards the ropes, signalling this would not be measured.

As Tawanchai continued to rely on his teep to manage distance, Liu stayed composed and committed to a singular target, slamming inside leg kicks into the champion's lead leg with increasing ferocity.

On the fourth strike to the same spot, Tawanchai crumpled, sitting down on the canvas whilst unable to rise before the referee's count, sealing a shocking leg kick technical knockout at 0:55.

The victory lifts Liu's professional record to 35-7 and builds on his promotional debut upset over Masaaki Noiri last December, establishing him as a legitimate threat to the featherweight elite.

Mohammad Siasarani weathered an early storm to knock out "Smokin'" Jo Nattawut with a devastating one-two combination at 1:39 of round two, earning a US$100,000 ONE Championship contract in featherweight Muay Thai action.

The 23-year-old Iranian shook off early damage to produce a highlight-reel moment, catching the former ONE Featherweight Muay Thai World Title challenger with a perfectly timed combination that ended the bout emphatically.

Yod-IQ Or Pimolsri exacted revenge in devastating fashion, knocking out Alexey Balyko with a perfectly timed high right kick at 2:06 of the opening round in their featherweight Muay Thai rematch, earning a US$100,000 contract.

ONE Friday Fights 137 Results

• Liu Mengyang def. Tawanchai PK Saenchai via TKO (leg kicks) R1, 0:55 (kickboxing - featherweight)

• Mohammad Siasarani def. Jo Nattawut via KO R2, 1:39 (Muay Thai - featherweight) - wins US$100,000 contract

• Yod-IQ Or Pimolsri def. Alexey Balyko via KO R1, 2:06 (Muay Thai - featherweight) - wins US$100,000 contract

• PTT Apichart Farm def. Kulabdam Sor Jor Piek Uthai via MD (Muay Thai - featherweight)

• Sam-A Gaiyanghadao def. Jaosuayai Mor Krungthepthonburi via UD (Muay Thai - strawweight)

• Pakorn PK Saenchai def. Suablack Tor Pran49 via UD (Muay Thai - bantamweight)

• Zhang Peimian def. Thongpoon PK Saenchai via UD (kickboxing - strawweight)

• Gingsanglek Wor Kumchamnarn def. Suriyanlek Por Yenying via UD (Muay Thai - flyweight)

• Shimon def. Dedduanglek TDed99 via UD (Muay Thai - flyweight)

• Duangdawnoi Looksaikongdin def. Regan Gowing via KO R2, 0:36 (Muay Thai - atomweight)

• Ryuya Okuwaki def. Pet Suanluangrodyok via UD (Muay Thai - atomweight)

• Denkriangkrai Singha Mawynn def. Asahi Shinagawa via UD (Muay Thai - strawweight)