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John Hackleman, a renowned figure in the martial arts world, served as Chuck Liddell's esteemed coach throughout his illustrious professional MMA career. Known for his exceptional coaching abilities and dedication to the sport, Hackleman played a pivotal role in shaping Liddell's fighting style, fostering his skills, and guiding him to numerous victories and championship titles, contributing to Liddell's legacy as one of the most formidable fighters in MMA history.