"Clodoaldo drove him off course."
-- match report for USA v Brazil, Daily Prophet, 5 July 2014 (Pm)
A participant in the 2014 Quidditch World Cup alongside fellow Beater Rafael Santos, Clodoaldo helped secure Brazil's victory in the semifinals with a "precision-hit Bludger" directed at American Seeker Darius Smackhammer (Pm).
Other canon notes and references
Carlos, the Spanish form of the names Charles and Karl, means "manly" (Behind the Name: Charles).
Clodoaldo is the name of a famous Brazilian footballer (Clodoaldo Tavares de Santana), who played for the Brazil National Team as a defensive midfielder between 1969 and 1974 (Wikipedia: Clodoaldo).
As he comes from Brazil, Clodoaldo may have attended the Castelobruxo Wizarding School.
From the Web
Screenshots of the Daily Prophet's coverage of the 2014 Quidditch World Cup: http://imgur.com/a/AXutv