Download. Betsul launches 'Bet do Bem' to promote an initiative - Clodoaldo Silva, known as the "Shark of the Pools," is a Brazilian Paralympic legend. % até R$ + Giros grátis. % até R$ + 30 Giros grátis. Clodoaldo Silva: Known as the “Swimming Pool Shark”, Silva is a Brazilian Paralympic legend, with 14 medals in Paralympic Games. <<<<