The world's largest martial arts organization will hold an event at Colorado's biggest sports arena. ONE Championship (ONE) will return to the United States for two World Championship super-fights in Colorado. "ONE 168: Denver" will be held Friday, Sept. 6, at Ball Arena in Denver. Tickets are on sale at Ticketmaster.com. ONE Women’s Atomweight MMA World Champion Stamp Fairtex will challenge Xiong Jing Nan of China for the ONE Women’s Strawweight MMA World Title. Stamp is looking to become a two-division titleholder. Also, two-sport ONE World Champion Jonathan Haggerty of the United Kingdom will put his ONE Bantamweight Muay Thai World Title on the line against current ONE Flyweight Kickboxing World Champion Superlek Kiatmoo9 of Thailand. ONE is looking to build off the success of its sold-out U.S. debut last May — ONE Fight Night 10: Johnson vs. Moraes III from the 1stBank Center in Broomfield. READ MORE: https://www.9news.com/article/sports/local-sports/one-championship-denver/73-942953ee-83ea-4f7d-a303-1018d71cb348 More local videos here: https://youtube.com/@9news Subscribe to NEXT: https://youtube.com/@Nexton9NEWS Stay connected: 9NEWS Website: https://www.9news.com/ Facebook: https://www.facebook.com/ilike9news Twitter: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado.