US swimming legend Michael Phelps has spoken of his frustration at the possibility rivals were using drugs at last year's Rio de Janeiro Olympics.
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.
Kenyan police arrest the secretary-general of the country's Olympic committee (NOCK) in the wake of a series of scandals and embarrassments at the Rio Games.
Russian President Putin awards rhythmic gymnast Margarita Mamun during a grand ceremony for Russian Olympic medallists returning home from 2016 Rio Olympics at Kremlin in Moscow.
On a team of mostly first-time young Olympians, veterans Carmelo Anthony and Kevin Durant steal the show as the USA win its third straight gold medal.
The Rio Olympics end in a blaze of colour with an exuberant closing ceremony as Tokyo take up the baton promising to host the best Games yet in 2020.
On the last day of the Rio Olympics Kenya's Eliud Kipchoge wins the marathon by more than a minute, Brazil win men's volleyball gold, police raid the Irish Olympic office and a Mongolian coach stages an underwear protest.
China won their third Olympic Games women's volleyball gold on Saturday with a 3-1 victory over Serbia in the final. China also won gold in 1984 and 2004 while they were runners-up to Cuba in 1996.
Margarita Mamun, a Russian gymnast of Bangladeshi origin, has won gold in women's individual all-around rhythmic gymnastics event at Rio de Janeiro's Olympic Arena on Saturday.
Argentina's Olympic football team complains that cash and electronics are stolen from players' hotel rooms while they were out.
The Australian team says they evacuated their building at the Olympic Village in Rio de Janeiro because of a fire in the basement on Friday,
Russia's sports minister says that the national team to compete in the Rio Olympics starting next week so far has 266 competitors.
Australia's Olympic delegation head Kitty Chiller questions Russia's determination to eliminate drug cheats.
Brazilian protesters claim they have extinguished the Olympic torch as it makes its way to Rio de Janeiro.
Australia's Olympic delegation, which refused to move into its Rio apartments due to a spate of problems, takes a dig at the city's mayor.
Roger Federer pulls out of the Rio Olympics and will miss the rest of the season, including the U.S. Open, because he needs "more extensive rehabilitation" to prolong his career after knee surgery earlier this year.
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..
The Australian Olympic team refuses to move in to Rio de Janeiro's village for athletes, saying the accommodation are "not safe or ready" for next month's games.
Brazil hold 10 presumed Islamist militants in isolation cells at a maximum security jail as police comb their computers and mobile phones for information about possible threats to next month's Olympics in Rio de Janeiro.