ONE Friday Fights 137: Tawanchai vs. Liu

ONE Friday Fights 137: Tawanchai vs. Liu was a combat sports event produced by ONE Championship that took place on December 19, 2025, at Lumpinee Boxing Stadium in Bangkok, Thailand. A featherweight Kickboxing bout between current ONE Featherweight Muay Thai World Champion Tawanchai P.K.Saenchai and Liu Mengyang headlined the event.