Sumo is an exciting competitive, full-contact wrestling sport where a rikishi (wrestler) attempts to force another wrestler out of a circular ring (dohyō) or into touching the ground with anything other than the soles of the feet. The characters 相撲 literally mean "striking one another”

Sumo originated in Japan over 1,500 years ago and grown to become an international sport with competitions in over (80) eighty+ countries around the world.  I-SUMO has wrestlers from all over the world making it the largest league with the most participating countries.

International Sumo League