In which country would one most likely view the sport shown in the photo above? (sumo wrestling)

Sumo wrestling would be most commonly viewed in Japan.

Explanation:

Sumo is Japan's national sport and it's a specific type of wrestling. It is viewed as a religious ritual.

Typically, the first wrestler to touch the ground with any part of the body, besides his foot soles, or exits the ring, loses. There is also a ranking hierarchy and this sport is only played by men.