Published On: Thu, Apr 9th, 2026

Watch The ONE Fight Night 42 Weigh-Ins And Hydration Tests

Fight week is reaching its climax. Before the martial arts superstars can throw down at ONE Fight Night 42: Mann vs. Dzhabrailov on Prime Video, live from Bangkok’s iconic Lumpinee Stadium, they must first clear the final checkpoint standing between them and showtime.

Every athlete must successfully weigh in and pass their hydration test to ensure they are healthy and fit to compete in U.S. primetime this Friday, April 10.

Fans can watch the official ONE Fight Night 42 Weigh-Ins & Hydration Tests by clicking the video below beginning at 6 a.m. ET/5 p.m. ICT on Thursday, April 9.

In the headline attraction, a pair of undefeated mixed martial artists collide, and the winner could earn the next crack at two-division ONE World Champion Christian “The Warrior” Lee‘s ONE Welterweight MMA World Title.

American powerhouse Chase “Mannimal” Mann has been an absolute wrecking ball, as he has overwhelmed the competition with his heavy hands, suffocating grappling, and relentless physicality. The 29-year-old Arkansas native has his eyes on Lee’s belt, and a statement win on Friday could put him firmly in that conversation.

Standing across from him is a 21-year-old phenom equally obsessed with finishing his adversaries. Turkish juggernaut Dzhabir Dzhabrailov has knocked out or submitted every single one of his opponents. In fact, he has stopped all three of his rivals in ONE Championship within two minutes. Only one perfect record will survive when the final bell sounds on April 10.

The co-main event is a story for the ages. Sam-A Gaiyanghadao – the inaugural ONE Flyweight Muay Thai World Champion, ONE Strawweight Kickboxing World Champion, and ONE Strawweight Muay Thai World Champion – refuses to ride off into the sunset. At age 42, the living legend is riding a two-bout winning streak and has one final prize in his sights.

In Elmehdi “The Sniper” El Jamari, however, he faces a man who has the ability to turn off an opponent’s lights in the blink of an eye. The 28-year-old Moroccan holds a distinction few can claim: he is the only man to have knocked out the iron-chinned Thongpoon PK Saenchai in the organization. This Friday, he looks to do the same to Sam-A.

Take a look at the lineup for ONE Fight Night 42 below.

Full Card For ONE Fight Night 42

  • Chase Mann vs. Dzhabir Dzhabrailov (MMA – Welterweight)
  • Sam-A Gaiyanghadao vs. Elmehdi El Jamari (Muay Thai – Strawweight)
  • Suakim Pongsuphan PK vs. Vladimir Kuzmin (Muay Thai – Bantamweight)
  • Hiroba Minowa vs. Karen Ghazaryan (MMA – Strawweight)
  • Black Panther vs. Diego Paez (Muay Thai – Flyweight)
  • Dante Leon vs. Kenta Iwamoto (Submission Grappling – Welterweight)
  • Joshua “Flyin Hawaiian” Perreira vs. Gilbert Nakatani (MMA – Flyweight)
  • Dmitrii Kovtun vs. Mohanad Battbootti (Muay Thai – Bantamweight)

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