Petchmorakot Petchyindee, formerly known as Phetmorakot Wor Sangprapai, is a Thai retired Muay Thai kickboxer, originally from the Ubon Ratchathani province, Northeast of Thailand, but now fighting out of Bangkok. Phetmorakot's brand of Muay Thai is distinguished by his slicing elbows and devastating knees.

Lumpinee Boxing Stadium is a sporting arena in Bangkok, Thailand. Opened more than a decade later than Rajadamnern Stadium, Lumpinee is run by the Royal Thai Army. It has become the symbol of modern Muay Thai. Only Rajadamnern Stadium rivals the prestige of holding the title of "Muay Thai Champion of Lumpinee". The ranking system and championship titles are held from mini flyweight (105 lb) up to super welterweight (154 lb).