Thai fighter says he is still getting used to the rules after being constantly warned about clinching.
Champion Chingiz Allazov is not competing so winner is likely to earn a shot at title, held by Superbon Singha Mawynn.
Denis Puric and Rodtang Jitmuangnon will clash in flyweight contest next month, with Canadian looking to battle for belts ‘when I win’.
Thai fighter, previously Glory lightweight champion, has had his reputation dented by defeats, but aims to be in contention for the featherweight kickboxing belt.
Petchtanong was the first champion to fall foul of the drug testing protocols, while Ramazanov is back after entering the ring and confronting Jonathan Haggerty at ONE Fight Night 16.
Chinese fighter Wei Rui was awarded unanimous decision win on his ONE debut, but promotion’s CEO Chatri Sityodtong says ‘cloud of controversy’ hangs over outcome.
Buntan has been competing in this division for her entire professional career and previously fought while Meksen is moving up in weight.
The 34-year-old, who will appear in a bantamweight kickboxing contest at ONE Fight Night 22, has tasted just three defeats, the last one in 2018.
The 30-year-old Japanese, who will compete in the promotion’s stacked featherweight division, said on social media he had ‘finally arrived’.
Ben Tynan is two for two in ONE Championship after finishing Duke Didier inside a round, while Mauro Cerilli has had mixed results since signing in 2018.
Clash gives Bosnian Puric the fight he called for after beating Jacob Smith at ONE Fight Night 21.
Kickboxing legend one of three fighters from China on the night, with Hu Yong facing Reece McLaren in MMA bout and Zhang Lipeng facing Maurice Abevi.
Two-sport champion Regian Eersel loses lightweight kickboxing title to Alexis Nicolas at ONE Fight Night 21.
Italian-Canadian Jonathan Di Bella had been expected to defending hi strawweight crown against Prajanchai PKSanchaigym.
The Canadian has won all his 18 fights, but says he will be the underdog against one of the best Muay Thai fighters in the world.
The 33-year-old Thai is the headline act at ONE Friday Fights 58, where he faces the Armenian for the interim featherweight kickboxing world title.
Wei, 34, was the first Chinese fighter to win a title with the Japanese kickboxing promotion K-1 and, after 20 fights unbeaten in China, says he is now looking to compete with the best fighters.
Vandaryeva had not fought for a year while Kierczynska was tipped as a future title contender, but a second-round knockdown swayed the result in favour of the Belarusian.
The Thai will defend her belt against Denice Zamboanga but hopes to then have the chance to win the strawweight title and become the first to hold MMA titles in two weight divisions.
Yu Yau-pui and Lara Fernandez to meet in Muay Thai clash at ONE Fight Night 20 in Bangkok on March 9.
ONE Championship founder eyes trilogy fights in kickboxing and Muay Thai for Superlek, Takeru, and Rodtang Jitmuangnon.