Up to 31 athletes from six sports could be banned from competing at the Rio Games, Olympic chiefs have said.
GAMES
Construction begins at Rio 2016 beach volleyball venue AddThis Sharing Buttons
Work to construct the beach volleyball venue for this year's Olympic Games in Rio de Janeiro has begun on the famous Copacabana sands.
Olympic judo and wrestling venue officially inaugurated by Rio 2016
The Olympic venue for judo and wrestling at Rio 2016 has been officially inaugurated.
Park appeals to Court of Arbitration for Sport over South Korean ruling to ban him from Rio 2016
Olympic gold medalist Park Tae-hwan has filed an appeal with the Court for Arbitration of Sport (CAS) over a decision by South Korea to debar him from Rio 2016 following the completion of an 18-month doping suspension.
Nigel Walker: The (almost) one million hours that go into supporting British athletes
When we talk about the high performance system that underpins elite sport, there can often be misinterpretation around what this means.
Rio 2016 subway to open just four days before Olympics
A new subway line in Rio de Janeiro - billed as one of the major legacy projects of this year's Olympics - will only open four days before the Games begin.