After all the doubts, the grumbling and the gloom, Paris has finally embraced the Olympics, with some of its famously cynical residents even returning early from holidays to take part in the fun.

China's anti-doping agency (CHINADA) on Thursday urged the International Testing Agency (ITA) to intensify testing of U.S. track and field athletes, after American sprinter Erriyon Knighton tested positive for the banned substance trenbolone.

Marathon swimming is set to get underway amid concerns over water pollution in the river Seine.

"Hi all, writing today to let you guys know that I have decided not to compete at this year's US Open, a place where I have amazing memories," Nadal posted. "I will miss those electric and special night sessions in NYC at Ashe.

Following Novak Djokovic's dramatic gold medal victory at the Paris Olympics, Serbia is set to build a museum dedicated to the tennis great, according to the country's president.

There will be 21 medals up for grabs with the bulk of them being given out in athletics.

"The last hurrah, I'm done. I've always said I want to retire a champion, that's it," Harrington told Irish national broadcaster RTE.

The USA, record four-time women's football gold medallists, are still on course to win the title for the first time since 2012 after beating Germany 1-0 in extra time in Lyon, with Sophia Smith scoring the only goal.

Alfred is seeking to emulate Jamaica's Elaine Thompson-Herah, who did the 100m-200m double at the Rio 2016 Games and at the Covid-delayed Tokyo Olympics.

"What can I say? I just broke a world record at the Olympics, biggest possible stage for a pole vaulter," Duplantis said.

Chebet -- nicknamed "the smiling assassin" -- bided her time before accelerating past compatriot Faith Kipyegon down the home straight to take gold in 14min 28.56sec at the Stade de France.

Hosts France will play an Olympic men's football final for the first time in 40 years after beating Egypt 3-1 in extra time at the Lyon stadium on Monday and will face Spain for the gold medal.

It was on these tracks more than a decade ago that Hassan, a young asylum-seeker from Ethiopia, embarked on a journey that would lead to history at the Tokyo Olympics and make her a top medal contender in Paris.

In cities across Taiwan, from Wang's home in the capital Taipei to southern Kaohsiung, and Lee's hometown on the island of Kinmen just off the coast of China, public screens were set up that lured thousands of fans.

The 27-year-old American catapulted himself into a new level of stardom on Sunday after ending the USA's 20-year wait for a gold medal in the Olympics' most coveted title.

Artistic gymnastics marks its final day with the spotlight on two women's events – the balance beam and floor exercise finals featuring American Simone Biles.

"I feel honoured just to be an ambassador for my country," Alfred told reporters. "Not many people know about Saint Lucia. Sometimes I can be in an Uber and they ask me where I'm from... and they'll be like 'Where's Saint Lucia?'"

Novak Djokovic takes on Carlos Alcaraz at Roland Garros in a blockbuster men's singles tennis final, while Xander Schauffele will be hunting for back-to-back gold medals at the Le Golf National course.

The 17-year-old swimmer did it in an Olympic record time of two minutes 06.56 seconds, taking down the 2016 record of 2:06.58 set by Hungary's Katinka Hosszu, to complete a medley double after winning the 400 last Monday.

The father of Imane Khelif, the Algerian boxer at the centre of an Olympic row over whether athletes with Differences of Sexual Development (DSD) should compete as women, said she had honoured his family, calling attacks against her immoral.