Overview
- ONE Fight Night 42 at Lumpinee Stadium features a welterweight main event between 7-0 Chase Mann and 6-0 Dzhabir Dzhabrailov with live coverage on Amazon Prime Video and Sky Sports Action.
- The bout functions as a contender eliminator, with the victor positioned for a title challenge against two-division champion Christian Lee.
- Chase Mann, a 29-year-old American, turned pro in 2023 and won his ONE debut in January by first-round TKO over Isi Fitikefu.
- Dzhabir Dzhabrailov, a 21-year-old from Turkey, has finished all six opponents and recorded three ONE wins inside two minutes.
- The card also includes Muay Thai legend Sam-A Gaiyanghadao facing Elmehdi El Jamari in a strawweight clash.