Developments surrounding the doping case of Russian figure skater Kamila Valieva, 15, are overshadowing the Winter Olympics.
City has until January 17 to respond.
Sir Dave Brailsford said the package contained a nasal decongestant.
Anti-doping has become an arbitrary process, so why not change the rules?
Carter was reported to have tested positive for corticoids.
'Fancy Bear' has been releasing details of athletes' Therapeutic Use Exemptions.
Wiggins has been under pressure to explain his use of corticosteroids.
Hackers have been releasing top athletes' medical data.
The medical details of top British cyclists have been released.
Chen Xinyi tested positive for an unnamed substance.
Politics, partying and Parkour: How Brazil welcomed the world to Rio 2016.
World athletics' governing body met in Zurich on Friday.
The sports manufacturers will continue their agreements despite two-year ban.
The world of professional tennis is becoming increasingly fractious.
Dr. Mark Bonar's allegations have shaken faith in U.K. anti-doping efforts.
Anti-doping bodies must become more accountable to the athletes they serve.
It is a substance meant for patients with heart conditions.
Rosalyne Bachelot suggested his absence from the game in 2012 was not due to injury.
Key questions about the drug the tennis star tested positive for in January.
The sportswear giant has sponsored the Russian for over a decade.
Nikita Kamayev had reportedly been skiing when he complained of 'heart ache.'
Mara Yamauchi, Britain's second fastest female marathon runner, says the organization may be beyond repair.