With crimson lipstick, eye-liner, mascara and a beaming smile, Michelle Carter wins a stunning Olympic shot put gold to sprinkle a little glitz on an event often cruelly ridiculed for the shape of its women athletes.

Chinese swimmer Chen Xinyi fails a doping test at the Rio Olympics, the official Xinhua news agency reports.

The younger guys started crying, I started crying. My last 400 free relay ever, it feels damn good to get a win

Top quotes from the Rio Olympics 2016.

It was the hardest day I've ever had in my life on a bike. It was a brutal, brutal, strange old race, Ireland cyclist Dan Martin says.

A joyful sashay through Brazil's extraordinary musical heritage is infused with a social message and a warning over the dangers of climate change as Rio de Janeiro draws back the curtain of the 2016 Olympic Games with a highly charged opening ceremony.

Andy Murray shrugs off the potential threat of the Zika virus as well as the absence of two of his leading rivals on Tuesday as he prepares to defend his Olympic title.

Novak Djokovic, Andy Murray, Rafael Nadal and Serena Williams will display their Grand Slam talents in Rio, but with serious questions being asked over tennis's place in the Olympics after a host of high-profile pull-outs.

"My biggest dream at the Olympics is to win three gold medals again. That's my focus, that's what I want," Bolt says in an interview.

Athletics' governing body says it has definitively rejected Moscow's request to review its blanket ban of Russia's track and field team from next month's Rio Olympics over state-sponsored doping.

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.

An Olympic historian disagrees with a widely held consensus that American swimmer Michael Phelps is the greatest ever Olympian.

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.

A further 45 athletes test positive for banned substances after a second set of samples were re-analysed from the London and Beijing Olympics.

Wimbledon champion Andy Murray will miss Britain's Davis Cup quarter-final clash against Serbia with captain Leon Smith naming Kyle Edmund and James Ward as his two singles players on Wednesday.

World number two Dustin Johnson, who won his first major title at the US Open Golf Championship in June, will not play in the Rio Olympics because of concerns over the Zika virus.

Olympic long jump champion Greg Rutherford decides to freeze his sperm because of fears about the Zika virus at this year's Games in Rio de Janeiro.

14 Russian athletes, including 10 Olympic medallists, have tested positive for doping in new tests of their samples given during the 2008 Beijing Games.

Up to 31 athletes from 12 countries could be banned from the Rio Olympics for doping after new tests on samples from the 2008 Beijing Games

Neymar says sitting out of the Copa America is worth it for the chance to lead Brazil to gold in front of a home crowd at the Rio Olympics in August.