Romania's Simona Halep on Friday rounded on the International Tennis Integrity Agency (ITIA) for discrepencies in the treatment of world number two Iga Swiatek after testing positive for a banned substance.

Maria Sharapova's racket sponsor backs French Open's decision to deny the former world number one a wildcard entry and blames the World Anti-Doping Agency (WADA) for her exclusion.

Madrid's Anti-Doping Laboratory was reinstated by the World Anti-Doping Agency (WADA) on Friday, more than a year after it was suspended.

Doha's anti-doping laboratory has had its accreditation suspended for four months after it failed to comply with international standards, the World Anti-Doping Agency (WADA) says in a statement.

Computer hackers who leaked the medical records of more than 100 top athletes in a bid to reveal questionable drug exemptions may have tampered with the data, according to the World Anti-Doping Agency (WADA).

Mo Farah, Rafael Nadal and Justin Rose are among athletes targeted in the latest leak of confidential medical documents that the world anti-doping agency (WADA) says were hacked by a Russian cyber espionage group.

The World Anti-Doping Agency (WADA) says that another batch of athlete data has been leaked by the same Russian cyber espionage group that published confidential medical data earlier this week.

The World Anti-Doping Agency slams Russian hackers who breached its database and published confidential records of US Olympic gymnast Simone Biles and tennis stars Venus and Serena Williams.

International Olympic Committee chief Thomas Bach demands a sweeping overhaul of the World Anti-Doping Agency (WADA) as Russian appeals against bans mounted just three days from the opening of the Rio Games.

Russian swimmers Vladimir Morozov and Nikita Lobintsev have been cleared to compete at the Rio Olympics, their representatives said Tuesday, though there was no official confirmation.

Australia's Olympic delegation head Kitty Chiller questions Russia's determination to eliminate drug cheats.

The International Olympic Committee's decision to reject calls to ban all Russian competitors from the Rio Olympics could lead to "lesser protection for clean athletes," the World Anti-Doping Agency (WADA) says..

Russia insist it expects to avoid a blanket ban from the IOC on its competitors at the Rio Olympics despite its track and field squad losing an appeal over a suspension for state-sponsored doping.

The Court of Arbitration for Sport says it had rejected Russia's appeal against the exclusion of its track and field athletes from the Rio Games starting on August 5.

The World Anti-Doping Agency (WADA) calls for Russia to be completely banned from the Rio Olympics and other international sport after an investigation found rampant state-run doping at the 2014 Sochi Winter Olympics and other events

The report to be released Monday into allegations of widespread state-sponsored doping in Russia has already sparked rumblings it could trigger the "nuclear option" of a full ban of Russia from the Rio Olympics.

Maria Sharapova plans to make good use of the time on her hands thanks to a two-year doping ban from tennis.

Maria Sharapova's attorney John Haggerty hit out at World Anti-Doping Agency (WADA) head Craig Reedie for comments he made about the Russian tennis star's earnings.

Scandal-hit Russia will likely discover Friday that it has not done enough to get back into world track and field's governing body, the IAAF, in time for its athletes to compete at the Rio Olympics.

Former world number one Maria Sharapova may never play again following her failed drugs test, the president of the Russian Tennis Federation says.