Yodtong Siriwalak (Thai: ยอดธง ศรีวราลักษณ์; 28 August 1937 – 8 February 2013) most commonly known by his Muay Thai ring name Yodtong Senanan (Thai: ยอดธง เสนานันท์) or Kru Tui (ครูตุ้ย or ครูตุ๊ย) was a Muay Thai fighter, trainer, and owner of the Sityodtong Muay Thai Camp in Chonburi, Thailand. He produced 57 Muay Thai champions, the most in the sport's history in Thailand. His most famous champions include Samart Payakaroon, Kongtoranee Payakaroon, , , , and . Additionally, top Muay Thai, K-1 and UFC professional fighters from around the world such as Rob Kaman, Ramon Dekkers, Ernesto Hoost, Peter Aerts, Musashi, Kenny Florian and Antonio Braga Neto have made the pilgrimage to Sityodtong Gym in Pattaya to train and sharpen their skills. His top trainers include , , Chatri Sityodtong, Y