ONE Fight Night 42 Features Four American Stars, All-American MMA Clash

ONE Championship has revealed three more fights for ONE Fight Night 42, and American stars are front and center.

Chase Mann takes on Turkish destroyer Dzhabir Dzhabrailov in a welterweight MMA clash, Joshua Perreira meets Gilbert Nakatani in an all-American flyweight MMA showdown, and Diego Paez challenges Thai brawler Black Panther in a flyweight Muay Thai matchup.

The event goes down on Friday, April 10, inside Lumpinee Stadium in Bangkok, Thailand, live in U.S. primetime on Prime Video. ONE Fight Night 42 is headlined by ONE Lightweight Muay Thai World Champion Regian Eersel, who looks to reclaim the division’s vacant kickboxing crown.

With four U.S. fighters spread across two disciplines on a single primetime card, ONE Fight Night 42 delivers the kind of lineup that gives North American audiences multiple reasons to stay invested from start to finish.

Mann Returns in the Battle of Undefeateds at ONE Fight Night 42

Mann is one of the more intriguing unbeaten prospects to arrive in ONE Championship in recent memory. The 29-year-old Arkansas native trains out of The LC and brings a 7-0 career record to Bangkok, with five of those victories coming via finish.

His ONE debut in January ended in a first-round TKO win over Robert Whitaker’s training partner Isi Fitikefu. Man dominated the Tongan-Australian juggernaut before the fight was stopped due to a serious knee injury suffered by his opponent.

Dzhabrailov arrives to ONE Fight Night 42 as one of the most explosive young fighters on the roster. The 21-year-old from Turkey carries a 6-0 record with all six victories coming via stoppage, including three knockouts in ONE that never crossed the two-minute mark. His all-out attacking style makes him one of the most dangerous opponents an unbeaten fighter can face at this stage of a career.

Perreira Targets First ONE Win Against Compatriot Nakatani

The all-American flyweight MMA matchup between Perreira and Nakatani is one of the more compelling subplots on the ONE Fight Night 42 card. Perreira made his promotional debut in 2025 against Chinese star Banma Duoji in a fight that ended in a TKO loss before the decision was overturned to a no contest.

Nakatani brings the experience advantage to the matchup. The 32-year-old from Aragon Training Academy has competed on the biggest stages the flyweight division has to offer, pushing reigning ONE Flyweight MMA World Champion Yuya Wakamatsu and longtime strawweight contender Jeremy Miado the full distance across a pair of competitive three-round bouts.

At 9-3 overall, Nakatani carries the record of a fighter who has navigated high-level MMA competition and emerged with hard-earned knowledge of what it takes to win on the global stage. Perreira’s well-rounded game makes him capable of matching Nakatani in any phase of the game.

Paez Vs. Black Panther Finally Rebooked

Paez has established himself as one of the more unpredictable figures in the ONE Championship flyweight Muay Thai division. The American-Colombian striker debuted in 2025 with a tight loss to longtime rival Sean Climaco in their trilogy, but he then stunned the combat sports world with a split-decision victory over Malaysian-American sensation Johan Ghazali later in the year.

Eight striking victories across his career reflect a fighter who knows how to navigate difficult matchups and produce results when it matters. Paez, who trains with his nine-year-old son, will need to bring the composure and tactical discipline that produced the Ghazali upset to ONE Fight Night 42 if he is to add another marquee name to his resume.

Black Panther carries an 80-17 pro striking record and a 4-1 promotional mark built on four consecutive victories. His home field advantage and striking pedigree make him the natural favorite in Bangkok, but Paez’s ability to deliver upsets means the Thai brawler cannot afford a single lapse across the duration of their flyweight Muay Thai contest.

The two were originally scheduled to collide at ONE Fight Night 40 this past February, but a late illness forced Black Panther to withdraw from the match just hours before showtime. But now, everyone is healthy and ready to rock.

ONE Fight Night 42 airs live on Prime Video on Friday, April 10. 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.