Brazilian rower Kissya Cataldo da Costa and Colombian 400-meter sprinter Diego Palomeque are both out of the Olympics after failing drug tests.

The Brazilian Olympic Committee, or COB, announced Saturday that it bumped Cataldo from the rowing competition because the results of a drug test she underwent before the Olympic Games came back positive.

Cataldo failed a drug test made in Brazil on July 12 by the International Rowing Federation, which told the Brazilian delegation Saturday of the results.

Upon hearing the news, the COB decided to suspend Cataldo "preventively" and barred her from taking part in the final of the women's single sculls, in which she was scheduled to compete on Saturday.

The 30-year-old Brazilian athlete had classified for the final with the second best time in her semifinal group.

Palomeque, meanwhile, tested positive for testosterone dosage in the urinalysis of a sample taken on July 26 in London.

The Colombian could not take part this morning in the 400-meter first-round heats and now awaits the results of a test on his backup sample. EFE