Chatri Trisiripisal (Thai: ชาตรี ตรีศิริพิศาล, RTGS: Chatri Trisiriphisan), known by the ring names as Chatri Sityodtong (Thai: ชาตรี ศิษย์ยอดธง, RTGS: Chatri Sit-yotthong) and Yodchatri Sityodtong (Thai: ยอดชาตรี ศิษย์ยอดธง, RTGS: Yotchatri Sit-yotthong), is an entrepreneur and a martial artist originally from Thailand, best known as the founder, chairman, and chief executive officer of ONE Championship (ONE). According to Nielsen, ONE ranks amongst the world's top 10 biggest sports media properties in terms of viewership and engagement. According to Forbes, ONE is Asia's largest global sports media property. Chatri Sityodtong was named Asia's 2nd Most Powerful Person in Sports by FOX Sports. He is currently the star of The Apprentice: ONE Championship Edition.