International Olympic Committee (IOC) President Thomas Bach has warned entire National Federations could be banned as sport deals with its growing doping crisis - but he stopped short of criticising Russia.
The World Anti-Doping Agency (WADA) has promised to publish a full report following an investigation into claims of a Russian drugs operation at the Sochi 2014 Winter Olympics.
Russia’s doping scandals are rather like those traditional wooden dolls tourists bring back home after visiting that country. Open up one and another is revealed. And so on.
Russian Sports Minister Vitaly Mutko says his country is "sorry" for the doping crisis which has put the Rio 2016 participation of its athletics team at risk.
It is not an overstatement to say that sport’s integrity is being questioned like no time before.
Tokyo 2020 officials have claimed that payments made to the corruption-linked Black Tidings bank account were "legitimate" amid allegations of vote-buying.
Grigory Rodchenkov, the former head of Russia's discredited doping laboratory, has sensationally detailed an alleged state-run cover up of drugs offences at the Sochi Winter Olympics.
Kenya has today been declared non-compliant by the World Anti-Doping Agency (WADA) - meaning the country's athletes risk missing the Rio 2016 Olympics.
United World Wrestling (UWW) has stripped Rio 2016 Olympic berths from countries whose athletes tested positive for meldonium at the recent European and Asian qualifying tournaments.
The World Anti-Doping Agency (WADA) is seeking to access the taped conversations which allegedly prove new accusations about Russian drug-taking and cover-ups at the Sochi 2014 Winter Olympics.
Contaminated meat is continuing to pose a challenge for FIFA dope testers.
Rio 2016 operations have officially begun at the Brazilian Doping Control Laboratory (LBCD) - less than two months after sporting drugs legislation was passed in Brazil ahead of a World Anti-Doping Agency (WADA) imposed deadline.
Russian FSB agents covered-up doping offences at the Sochi 2014 Winter Olympics, a whistleblower at the centre of the drugs scandal in the country has claimed.
Russian whistleblower Vitaly Stepanov has alleged that at least four of the country's gold medallists at their home Sochi 2014 Winter Olympics were using steroids.
The World Anti-Doping Agency (WADA) has suspended the South African Doping Control Laboratory in Bloemfontein until September 30.