The United States set a new world record as they powered to gold in the women's 4x100m medley relay on Sunday with Australia taking silver and China bronze.

With her second win of the tournament, the 28-year-old Lin is certain to win a medal because losing semi-finalists in the boxing take home bronze.

After heartbreak in Beijing, London, Rio de Janeiro and Tokyo, Djokovic simply would not be denied the one title that had eluded him for so long, winning 7-6(3) 7-6(2) in front of an enthralled crowd on Court Philippe Chatrier.

Algerian teenager Kaylia Nemour conjured up "the performance of her life" to become the first African to win an Olympic gymnastics medal with gold on the uneven bars on Sunday.

"This is a singular moment in history for Saint Lucia that we will remember for the rest of our lives. I'm so, so proud about everything she has accomplished so far."

All training was cancelled in the river last week and the men's individual race had to be delayed by 24 hours because of pollution problems.

"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.

Bangladesh's 11th campaign in the Summer Olympic Games finished yesterday as disappointingly, if not more, as the country's previous 10 campaigns.

Simone Biles soared to women's vault gold on Saturday, her gravity-defying Yurchenko double pike propelling her to a third triumph of the Paris Games and her seventh career Olympic crown.

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.

Daniel Wiffen is not used to the fame that comes with becoming an Olympic champion after he became the first Irishman to win a gold in the pool but the 23-year-old is not one to shy away from posing for selfies in the athletes' village in Paris.

Her victory comes after her brother, Finn Florijn, won gold in quadruple sculls earlier this week while their father, Ronald Florijn, is a two-time Olympic champion –- at the 1988 Seoul Olympics and at the 1996 Atlanta Games.

Hosts France knocked out Argentina on Friday to avenge the country's defeat in the last World Cup final in a bitter rivalry recently fuelled by a video of Argentine players directing chants labelled as racist at French players.

Coached by Carl Lewis and the first European to win the NCAA title in the United States, Hinchliffe finished strongly and Lyles, not exactly easing up, took second in 10.04 to also go through safely.

Wasick first represented Poland at the 2008 Beijing Games and has since competed in London, Rio and Tokyo before arriving in Paris with one of the fastest times in the 50 freestyle.

"We are talking about women's boxing. We have two boxers who were born as women, raised as women, who have passports as women and who have competed for many years as women and this is a clear definition of a woman," Thomas Bach told a press conference.

Israel Madaye scored just one point with one of his arrows in the men's individual against top South Korea archer Kim Woo-jin, who rattled home an almost perfect score of 88 out of 90.

The International Boxing Association (IBA) will award Italy's Angela Carini, who lost her welterweight round-of-16 bout against Algerian Imane Khelif at the Paris Olympics in 46 seconds on Thursday, $50,000 in prize money, it said on Friday.