The Court of Arbitration for Sport creates a new fast-track court to hear doping cases at the Rio Olympics.
BBC Sport provides a comprehensive guide to all of the Olympic sports, including where Team GB's medals may come.
Indian and Asian shot put champion Inderjeet Singh believes there is a conspiracy against him after he failed a drugs test.
A further 19 Russian rowers are banned from the Olympics, bringing the number of suspended Russian athletes so far to 37.
Russian drug cheats will still be competing at the Rio Olympic Games despite recent efforts to target them, whistleblowers tell the BBC.
Swiss tennis great Roger Federer will miss the Olympics and the rest of the season with a knee injury.
Olympic 10,000m runner Jo Pavey says the entire Russian team should be banned from competing at the 2016 Olympic Games.
BBC Sport continues the countdown to the 2016 Rio Olympic Games with the 1968 Mexico City protest by Tommie Smith and John Carlos at their treatment in the United States.
Spencer Wilton and horse Super Nova II will make their Olympic debuts at Rio 2016 after a six-year riding relationship.
BBC Sport takes a look at the best medal chances for hosts Brazil at this summer's Rio Olympic Games.
With representation in just about every event and a history of garnering lots of hardware, it is anticipated that the USA will bring home quite a few medals from Rio de Janeiro in the upcoming Summer Olympic Games.The odds are certainly in their favor. Show More Summary
In another disturbing Rio story as we head into next month’s Summer Olympics, New Zealand jiu-jitsu athlete Jason Lee claims he was kidnapped in Rio on Saturday by men dressed in police uniforms. What did you guys get up to yesterday?I got kidnapped. Show More Summary
Fina says seven Russian swimmers will be ineligible for the Rio Olympic Games following last week's McLaren Report.
Russian athletes are arriving in Rio for the Olympics Games, but how many will be cleared to compete?
The remarkable story of two refugees from Sudan aiming to make Olympic history.
Former BOA Chairman Lord Moynihan says he is disappointed with the IOC's decision on Russia but also hits out at Wada for being ineffective when it comes to dealing with doping issues in sport.
Doping whistleblower Yuliya Stepanova questions an International Olympic Committee ruling to ban her from the Rio Olympics.
Olympics silver medallist Michael Jamieson may continue swimming if he thinks he can still challenge for major medals.
The head of Russia's anti-doping agency says she can guarantee that only clean athletes will go to the Rio Games.
A Scottish double Olympic medal winner has been flown to Rio for the 2016 games - by his father.