BANGKOK – ONE Championship recently held the official ONE: Kingdom of Heroes Open Workout at Nakornloung Promotion Gym in Bangkok, Thailand. Set for the Impact Arena on 6 October, ONE: Kingdom of Heroes will feature The Ring and WBC Super Flyweight World Champion Srisaket Sor Rungvisai of Thailand, as he defends his title against challenger Iran “MagnifiKO” Diaz of Mexico.   In attendance at the Open Workout were Srisaket Sor Rungvisai, Iran Diaz, as well as ONE Championship athletes … [Read more...] about Srisaket Sor Rungvisai faces off with Iran Diaz at “ONE: Kingdom of Heroes” Open Workout