Osman Yigin – The Beating Heart of WKN in BelgiumIn Belgium, the true beating heart of the WKN is Osman Gym, a legendary 400 m² training hall fully dedicated to combat sports: Kickboxing and Muay Thai. Founded by the iconic Osman Yigin, this temple of martial arts has become a place where discipline, respect, and relentless determination shape champions generation after generation.