ONE Championship has revealed a ONE Interim Featherweight Muay Thai World Title clash between Scottish knockout machine Nico Carrillo and Thai veteran Shadow Singha Mawynn at ONE Fight Night 40 on Friday, February 13. The event airs live in U.S. primetime from Lumpinee Stadium in Bangkok, Thailand.
The 27-year-old Carrillo will attempt to capture interim gold at ONE Fight Night 40 in his second opportunity after his bantamweight title dreams were shattered by Nabil Anane’s TKO victory at ONE 170 last year.
Shadow, meanwhile, gets his first crack at the belt and looks to become the division’s interim king while his compatriot – reigning ONE Featherweight Muay Thai World Champion Tawanchai PK Saenchai – recovers from a leg injury.
Carrillo Seeks Redemption in Second Interim Title Opportunity at ONE Fight Night 40
The “King of the North” brings a 29-4 professional record into this title showdown at ONE Fight Night 40 with all six of his ONE Championship victories coming via stoppage.
Carrillo’s explosive knockout power has flattened world-class opposition throughout his promotional tenure, building momentum toward his first interim title challenge against Anane at ONE 170 last year.
However, the Algerian-Thai sensation shattered the Scot’s championship aspirations with a first-round TKO loss, forcing Carrillo to reassess his career trajectory. Rather than wallowing in defeat, the 27-year-old moved up to featherweight.
The weight class switch paid immediate dividends as Carrillo demolished Thai veteran Sitthichai Sitsongpeenong and American striker Luke Lessei, both via second-round finishes last year. The consecutive knockout victories at featherweight showcased his ability to carry his finishing power to the higher division while announcing his arrival as a legitimate threat to the divisional hierarchy.
Thai Star Brings Momentum Into ONE Fight Night 40
The 25-year-old Shadow represents Singha Mawynn with an impressive 81-14 career striking record and 6-2 (1 NC) promotional mark built through consistent performances against quality opposition. His six Muay Thai victories in the promotion showcase technical mastery and finishing ability that make him a dangerous opponent for any featherweight contender seeking the organization’s coveted belt.
Shadow’s recent promotional setback came in September during his kickboxing debut against Liu Mengyang, the same Chinese striker who recently demolished Tawanchai to close 2025. The defeat highlighted the challenges of transitioning between striking disciplines while providing valuable experience against an opponent who has proven capable of stunning elite competitors.
His current Muay Thai momentum positions him favorably for this interim title opportunity at ONE Fight Night 40, with home support and traditional expertise in “the art of eight limbs” creating advantages against the aggressive Scottish challenger.
Interim Crown Provides Path to Undisputed Title Showdown
The creation of an interim title addresses Tawanchai’s injury-related absence while maintaining divisional momentum. The reigning champion suffered a devastating leg injury during Liu’s shocking 52-second knockout in December, requiring plenty of recovery time. The interim title ensures the featherweight Muay Thai division remains active while providing clarity about the next challenger to the throne.
Whoever wins this interim title clash at ONE Fight Night 40 will earn a future unification bout with Tawanchai once the Thai champion returns to action. Carrillo seeks redemption following his bantamweight interim title defeat, but Shadow is ready to deny him and set up an all-Thai showdown that would captivate fans of the striking arts.
But Carrillo isn’t the only one seeking redemption. In the ONE Fight Night 40 headliner, ONE Women’s Strawweight Kickboxing World Champion Jackie Buntan looks to exact revenge against the last person to defeat her, Stella Hemetsberger, the division’s Muay Thai titleholder who beat her for the vacant crown last September.
ONE Fight Night 40 airs live on Prime Video on Friday, February 13. The action begins at 8 p.m. ET/5 p.m. PT. The event is free for all Amazon Prime subscribers in the U.S. and Canada.
