Retired tennis star Martina Hingis was banned for two years on Friday after an independent tribunal confirmed the doping offence.
Hingis retired in November following her positive test for cocaine at Wimbledon 2007. The five-time Grand Slam champion denied taking cocaine but said she had "no desire to spend the next several years of my life reduced to fighting against the doping officials."
The former world number one will lose the ranking points and prize money earned at Wimbledon and four following tournaments she played.
The Tribunal rejected the suggestion made on behalf of Hingis that there were doubts about the identity or integrity of the sample attributed to her.
It also rejected Hingis’ plea of No (or No Significant) Fault or Negligence, on the basis that no mitigation was possible as it had not been shown how the cocaine entered her system.