Olympic and world swimming champion Cesar Cielo has tested positive for the banned substance furosemide but escaped suspension, the Brazilian Aquatic Sports Confederation (CBDA) said on Friday.
Brazil's Cesar Cielo Filho sliced through the 47-second barrier to triumph in the men's 100 metres freestyle final amid another torrent of swimsuit-aided records at the world championships in Rome on Thurday. The Brazilian stormed to a world record time of 46.91 to stun Olympic champion Alain Bernard, who came in second ahead of compatriot Frederick Bousquet.
Swimming's governing body FINA has insisted athletes are responsible for monitoring their own dietary supplements as it prepares to appeal a decision by Brazil not to sanction four swimmers who tested positive for a banned substance.
Olympic 50 metres freestyle champion Cesar Cielo predicted on Wednesday that Brazil would leave the London Olympics with more medals than the 15 they took home from Beijing four years ago.
Chad Le Clos took his fourth gold medal in Doha on Sunday and became the first male swimmer to win all three butterfly distances in a single world short-course swimming championships.
Former FIFA official Jerome Champagne formally announced on Monday that he will stand against incumbent Sepp Blatter in next year's election for president of the world soccer body.