The American sprinter tested positive for a metabolite of cannabis at a meeting in Seville in June.
The World 100 metres record holder will press for arbitration of doping charges against the sprinter by the US Anti-Doping Agency.
The world's fastest man was officially charged by the U.S. Anti-Doping Agency of committing a doping offence.
The American sprinter wants any samples obtained from the BALCO investigation to be tested for DNA first to ensure they belong to her.
The American sprinter will miss the Athens Olympic Games and all her results since December 15, 2000, have been disqualified.
In the full decision posted on CAS's website and made public on Wednesday, CAS said Sun Yang had sought to shift blame to testers and his entourage and taken no responsibility for his actions.
The US Senate has decided to release documents detailing any drug use by American athletes.
American rider Floyd Landis was banned for two years after being found guilty of doping by a US arbitration panel.
"The thought of somebody's livelihood, career or legacy to be ripped to shreds for an accident is a terrible thought," said the American.
Sports Minister Kiren Rijiju, on Monday, said bringing the BCCI under the ambit of National Anti-Doping Agency (NADA) is one of his biggest achievements since assuming his new office three months ago.
German T-Mobile rider Patrik Sinkewitz tested positive for elevated levels of testosterone, the German cycling federation said on Wednesday.
Sumit Sangwan failed the dope test after being tested positive for a banned substance.
A top U.S. Olympic official has assured the IOC that his country is committed to the fight against performance-enhancing drugs.
The US needs to make a more serious commitment to the fight against performance enhancing drugs.
Several athletes testified before a grand jury investigating the BALCO lab, which is suspected of producing steroids.
The method for detecting the new designer steroid is being sent to IOC-accredited laboratories throughout the world.\n\n
The double world sprint champion said she would also take part in the weekend's World Athletics Final in Monaco.
The expulsion, which would have to be approved by the World Athletics Congress, would lead to Russian athletes being sidelined from international competitions, including those who had previously been authorised to compete as neutrals.
Do you think Shane Warne should be allowed to play in charity games while he's serving out his ban?
The full name of the Russian Olympic Committee could not be used and team flags would bear the logo of the committee
Left red-faced by the four-year ban imposed on Narsingh Yadav by the Court of Arbitration (CAS), the Wrestling Federation of India has demanded a CBI probe into the doping scandal that has jeopardised the grappler's entire career.
A German TV documentary alleging widespread doping and cover-ups among Russian track and field competitors contains 'a pack of lies', the country's athletics federation president said.
The case is closed after WADA said it would take the matter to the Court of Arbitration for Sport.
Russian drug cheats will be competing at next month's Rio Olympics, the whistleblowers who helped uncover the country's doping scandal have told the BBC.
Russia's men's quadruple sculls crew have been banned from the Rio Olympics after one of their members failed a doping test in May, the world governing body FISA said on Friday.
The American athlete will miss the Athens Olympics after her appeal against a two-year drugs ban was dismissed
The Central Bureau of Investigation (CBI) registered a case in the doping scandal involving international wrestler Narsingh Yadav, who was barred from participating in the Rio Olympics after banned substances were found in his urine samples.
Lamine Diack, the former head of world athletics, has been placed under formal investigation in France on suspicion of corruption and money laundering following a complaint from the World Anti-Doping Agency (WADA).
This year Olympic Games could feature an athletics programme without two of the sport's most powerful nations -- Russia and Kenya -- while a third, Ethiopia, is under immense pressure to show it has adequate anti-doping measures.
The U.S. shot putt champion is one of four U.S. athletes who have tested positive for THG.
A Moscow anti-doping laboratory which was to be used during next year's Sochi Winter Olympics will have its accreditation suspended by the World Anti-Doping Agency (WADA) unless it improves the way it operates by December 1.
The IAAF said the samples taken from the athletes matched initial A samples which were made known last month.
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