Discussing the Business of Sumo Wrestling
Sumo Wrestling is a popular competitive contact sport in Japan where a wrestler attempts to force his opponent either out of a circular ring, called the "dohyo", or to touch the ground inside the "dohyo" with anything other than the soles of the feet. Japan is the only country where the sport is practiced professionally because Sumo is essentially a sport of deep and ancient Japanese traditions, where there are many rituals and rules that need to be strictly followed and obeyed.

