ONE Fight Night 9: Nong-O vs. Haggerty is an upcoming combat sports event produced by ONE Championship that will take place on April 21, 2023, at Lumpinee Boxing Stadium in Bangkok, Thailand. A ONE Bantamweight Muay Thai World Championship bout between current champion Nong-O Gaiyanghadao and former ONE Flyweight Muay Thai World Champion Jonathan Haggerty headlined the event.
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