Juan Castro, left, a heavy weight champion from Venezuela, and Mario Frabetti, an open champion from Brazil, face each other before a match during the Sumo wrestling South American Championship in Sao Paulo, Brazil on July 22, 2012.

Sumo wrestlers fall outside the ring during the Sumo wrestling South American Championship on July 22.

Cassio Gomes of Brazil throws a handful of salt into the ring during the Sumo wrestling South American Championship on July 22.

Luciana Watanabe (top) of Brazil, a light weight female champion, and her opponent perform a pre-match ritual during the Sumo wrestling South American Championship on July 22.