Monsour started his Martial Arts training at the age of 9, which was sadly inspired by being bullied in school. At the same time, he was fascinated by Chinese Kung Fu movies, most especially by Bruce Lee. His first Martial Arts instructor was Joe Lopez-Vito, a Tang Soo Doo/Moo Duk Kwan practitioner. Later on, he shifted to Tae Kwon Do in 1977 under Sung Chon Hong when he moved to Manila for High School. he joined the Philippine National Team in 1982.