Rob was a good player, but never liked team sports and at the age of 16 he started training in the martial arts, first Pentjak Silat and in 1978 he started training Muay Thai at Mejiro Gym with the legendary Dutch trainer Jan Plas.
Rob was a good player, but never liked team sports and at the age of 16 he started training in the martial arts. Kaman first practiced Pentjak Silat, an Indonesian art and in 1978 started training Muay Thai at Mejiro Gym with the legendary Dutch trainer Jan Plas.