Rebeca Gusmao, of Brazil, has been cleared on the first of three counts before the Court of Arbitration for Sport in Lausanne, her lawyer Breno Tannuri has confirmed. The two cases still pending are likely to prove trickier for the swimmer.

The victory related to a 2006 case of elevated testosterone, which FINA contested after Brazil opted not to act. Gusmao faces two other charges of doping, the first is in relation to an out-of-competition test leading up to the Pan-American Games and the second related to her urine tests during the Games held in Rio de Janeiro in 2007.

'Rebeca may still be condemned for the other cases brought up against her,' her lawyer noted. The cases pending include an allegation that differences in DNA of her urine tests prove her guilt of abuse of substances that raised her testosterone:epitestosterone levels beyond what the rulebook holds as acceptable levels.

Gusmao claims that she is innocent and that the high levels of testosterone found in her respective tests are natural and are due to the abnormality of her ovaries.