 Complete the following phrase:  Brazil has a major presence in the World Judo Championships. Rio de Janeiro first hosted the competition in October 1965, which was only the fourth edition of the championships. Although Brazil did not medal, this initial meeting would pave the way for future events. At the seventh edition of the Championships held in Ludwigshafen, West Germany, in September 1971, Brazilian judoka Chiaki Ishii earned the first World Judo Championship medal for Brazil. Since then Brazil has earned several medals. João Derly however, is Brazils only judoka to become a two-time world champion, winning the 