Richard Carapaz and the rest of Ecuador are "over the moon" after his victory in the men's cycling road race on Saturday.

Carapaz – who finished third in the general classification of the Tour de France earlier this month – crossed the finish line on the Fuji speedway well over a minute ahead of his nearest rivals to clinch Ecuador's second Olympic gold medal.

Meanwhile in the tennis, Andy Murray, who clinched gold in the singles at the 2012 and 2016 Games, started strongly with his doubles partner Joe Salisbury, as Team GB overcame French favourites Nicolas Mahut and Pierre-Hugues Herbert.

There was a shock for 2008 gold medallist Phil Dalhausser, as he and fellow American Nick Lucena fell foul of Dutch duo Robert Meeuwsen and Alexander Brouwer, while Naohisa Takato won Japan's first gold of the Games.

CARAPAZ CLAIMS RARE ECUADOR TRIUMPH

Carapaz came close in Le Tour, but ultimately could not match the power of Tadej Pogacar, who defended his title in cycling's prime road race.

Yet on the slopes of Mount Fuji, the South American came up with the goods to deliver a long-awaited success for Ecuador.

"My country is over the moon right now. It's the second Olympic medal in the history of my country," he told a news conference after his success, with Tour champion Pogacar claiming bronze behind Belgium's Wout Van Aert.

"The last medal that we won was 25 years ago, so it's a very special moment. It's the first medal in cycling, and cycling is a big sport in my country."

Carapaz's triumph came as good news for Geraint Thomas, who crashed out of the race after colliding with his British team-mate Tao Geoghegan Hart.

"Couldn't be happier for Richard Carapaz," tweeted Thomas – the Ecuadorian's fellow INEOS Grenadiers rider. "To finish on the podium at the Tour and win gold a week later is just incredible. Enjoy it mate. King of Ecuador."

MURRAY STARTS STRONG

It has been a long comeback trail for Murray, who was at the top of his game when he won his second Olympic gold medal back in 2016.

He faces a stern test in the singles on Sunday, when he goes up against Canada's Felix Auger Aliassime, and while a defence of that win may be unlikely, he and Salisbury made good progress in the doubles.

Murray was a silver medallist in the mixed doubles at the London Games, and along with Salisbury had too much for second seeds Mahut and Herbert, with the pair needing just 75 minutes to win 6-3 6-2.

"I think we have the potential to be a really good team," said Murray. "We were well deserved winners today – we created lots of chances, but not every doubles match is like that.

"If we keep the same sort of attitude and everything, prepare diligently, I think we've got a chance of doing well."

Murray's younger brother Jamie also enjoyed a fine start, as he and Neal Skupski came from behind to beat Argentina's Andres Molteni and Horacio Zeballos in a final-set tie-break.

TAKATO GETS JAPAN UP AND RUNNING

Naohisa Takato won Japan's first gold medal of the Tokyo Games, as he triumphed in the men's under-60kg judo final against Yang Yung-wei of Taiwan.

Takato, a three-time world champion and a bronze medallist in Rio, claimed a fitting victory for Japan in a sport that originated in the country, with the event taking place at the famous Nippon Budokan venue.

He had to beat Yeldos Smetov of Kazakhstan in a gruelling semi-final. Smetov shared the bronze medal with France’s Luka Mkheidze.

A shock earlier in the day saw Robert Mshvidobadze drop out in the last 16.

DALHAUSSER'S STRUGGLES CONTINUE, NO JOY FOR SETO

It has been a difficult start to the Games for Beijing beach volleyball champion Dalhausser, who had to quarantine after he was deemed a contact of Taylor Crabb. He was forced to withdraw due to a positive COVID-19 test, which has dented the United States' hopes.

Dalhausser could only train with Lucena on two occasions prior to Saturday's meeting with Meeuwsen and Brouwer and the lack of sharpness told as the Dutch prevailed 21-17 21-18 at the Shiokaze Park arena.

There was also no joy for home favourite Daiya Seto. The Japanese swimmer, who won a bronze medal in 2016, had been tipped to shine in the men's 400m individual medley, yet failed to qualify for the final as he finished ninth in the heat.

"In Rio I went out too fast [in the prelim] and didn't recover for the final. In the last 100 [today] I didn't let it all out. It was a misjudgement. The pressure wasn't too much," Seto said afterwards.

"I have the 200m butterfly and 200IM. I'll just forget what happened and focus on my events."

The United States returned to winning ways in emphatic fashion to kick-start their bid for Olympic glory, while Barbra Banda tied a Games record with a second successive hat-trick for Zambia.

Sweden had sensationally put an end to USA's 44-match unbeaten streak at the start of the women's tournament, with Megan Rapinoe admitting the beaten world champions had "played a bit tight" in a 3-0 defeat.

However, Vlatko Andonovski's side responded impressively to that setback on Saturday, thrashing New Zealand 6-1 in Saitama, in the process registering their largest margin of victory in an Olympics fixture.

Rose Lavelle and Lindsey Horan gave USA a 2-0 half-time lead, the latter on target to mark her 100th cap. Further efforts from Christen Press and Alex Morgan added to the score after the break, while they were helped out by their opponents scoring two own goals.

It is the Swedes who sit on top of the table, though, as a strong second-half performance sealed a 4-2 triumph against Australia.

Meanwhile, Banda equalled the record for most goals scored by a woman at a single Olympics, matching Christine Sinclair's tally of six for Canada at London 2012 with another treble, this time against China.

Zambia's captain scored all her country's goals in a 10-3 loss to the Netherlands in their Group F opener. She followed up with three more in a thrilling 4-4 draw on Saturday, though China's Wang Shuang went one better as she hit four in a see-saw contest.

Vivianne Miedema later moved level with Banda on six goals at this Olympics. The forward had scored four as the Dutch crushed Zambia, then managed another two in a 3-3 draw against Brazil.

Ellen White continued her impressive start to the tournament with the winner as Great Britain defeated hosts Japan 1-0 to qualify for the last eight.

Having scored twice in the opening 2-0 win over Chile, White made it 13 goals in her past 14 international outings when heading in a cross from Lucy Bronze in the 74th minute.

Also in Group E, Canada overcame Chile 2-1 thanks to a brace from Janine Beckie, putting them second in the standings ahead of a clash with Team GB to finish the round-robin stage.

Adam Peaty set an early benchmark but home hope Daiya Seto suffered a shock on a busy first day of swimming at Tokyo 2020, one that saw Australian duo Brendon Smith and Emma McKeon shine.

Peaty is aiming to become the first British swimmer to defend an Olympic title having taken gold at Rio 2016, while Seto made an inauspicious start to the Games.

Here is a round-up from Saturday's opening heats at the Tokyo Aquatics Centre.

EASY PEATY! RECORD HOLDER SAFELY THROUGH

Peaty has not been beaten in a 100m breaststroke race since 2014 and is aiming to lower his own record time of 56.88 seconds, which was set at the World Championships two years ago.

The dominant 26-year-old posted a 57.56 in a solid start to his Games, qualifying fastest ahead of Dutch rival Arno Kamminga (57.80). 

Peaty produced the eighth fastest time in history, while Kamminga set a Dutch record and is the only other swimmer who has broken 58 seconds in the event.

WOE FOR SETO AS SMITH STARS

These Games were meant to be about redemption for home medal hope Seto, the bronze medallist in a men's 400m individual medley race won by compatriot Kosuke Hagino four years ago.

Seto was the favourite in the race and seeking to atone after being barred last year after his involvement in an extramarital affair. He won world gold in the 400IM two years ago, but he sensationally failed to make it out of the heats at these delayed Olympics.

Seto, who returns to the pool next in the 200m butterfly on Monday, said: "It hurts and I'm frustrated at myself. It's my mistake and I have to owe up to it. What's done is done and not a whole lot I can do about it."

By contrast, it was Smith who qualified fastest, clocking a 4:09.27 to set a new Australian and Oceanic record. New Zealander Lewis Clareburt was second quickest, winning a tight third heat over 2016 silver medallist Chase Kalisz.

Smith's compatriots Elijah Winnington and Jack McLoughlin both made it through the men's 400m freestyle, with Germany's Henning Muhlleitner (3:43.67) fastest, just ahead of Austrian Felix Auboeck (3:43.91).

MCKEON, ZHANG SET THE MARK

There was more Aussie promise in the women's 100m butterfly – a seemingly wide-open event with three competitors having gone under 56 seconds this year.

McKeon – a winner of four medals in Rio, including relay gold in the 4x100m – and China's Zhang Yufei were two of those to achieve the feat and both recorded a 55.82 to top the timesheets in the heats, the former setting an Australian record for good measure.

Sarah Sjostrom, who holds the world record, was not even certain to race in this event after fracturing her elbow earlier this year, but posted an impressive 56.18 to go third quickest. The Swede was ahead of American Torri Huske (56.29), the third woman who has gone under 56 seconds this year.

Australia were also dominant in the women's 4x100m freestyle, their time of 3:31.73 almost two seconds better than the Netherlands.

Teenager Emma Weyant bettered her personal best with a 4:33.55 to comfortably post the best time in the women's 400 individual medley prelims. The 19-year-old - a winner at the U.S. Olympic trials - was almost two seconds quicker than Great Britain's Aimee Willmott (4:35.28).

Sena Irie has dreamt of winning an Olympic gold medal for Japan since she began boxing as a child, and a triumphant start at Tokyo 2020 has supercharged her self-belief.

The 20-year-old beat El Salvador's Yamileth Solorzano on a unanimous points verdict as all five judges scored her a comfortable winner, setting up a last-16 clash with Tunisia's Khouloud Hlimi Ep Moulahi.

Irie is a featherweight who took silver in the Asian and Oceanian Olympic qualifying event, held in Jordan almost 18 months ago. She also finished fifth at the 2019 AIBA Women's World Boxing Championships.

Asked what a gold would mean at the Olympics, Irie said: "Boxing is a minority sport in Japan, but it would mean so much for the sport and for me.

"It's hard to say in words. But I have been training for this moment for 13 years and winning gold is what I have been dreaming about all that time."

Fighting at the Kokugikan Arena came as a relief to the young Japanese star, who had feared the Games would be cancelled.

"I felt very sad about that possibility as I wanted to compete in a Games in my home country," she said.

"All the athletes were sending messages to each other with what was happening until we heard the news the Games would go ahead. We were so happy then. But now I can try and win a medal for my country after getting through my first fight."

Irie will face stiff competition, with the Philippines' Nesthy Petecio also in the draw and seeking to add Olympic gold to the World Championships title she secured two years ago.

Petecio beat Irie at that event, but the Japanese fighter avenged that loss in the Olympic qualifiers.

After starting with a points win over DR Congo's Marcelat Sakobi Matshu in the first boxing match of Tokyo 2020, Petecio said: "This is my first Olympics but there are mixed emotions really. I want to enjoy it but I know I need to improve."

Petecio added: "This is a new medal to fight for. It's a chance for a new achievement and I have forgotten about what I have achieved in the past."

She will tackle Taiwanese number one seed Lin Yu-Ting next, and said: "It's a fight I am very excited about. I know she also will have been looking at facing me in the draw so it will be a great fight."

Professionals are mixing with amateurs at the Tokyo Games, and among the men's featherweights is 23-year-old American Duke Ragan, who has taken his first steps in the paid ranks.

Ragan snatched a split points win over Frenchman Samuel Kistohurry on Saturday and accused his opponent of turning their battle into "a wrestling match".

"The guy was like wrestling me, making it hard for me. It was a great fight though," said Ragan. "He did what he came to do to try to make it rough on me because guys know that I like to box and be on the outside.

"I was a bit hard-headed, going to try and do what I thought was right. I've got to listen to the eyes on the outside to make adjustments."

Naomi Osaka lighting the Olympic cauldron will have helped increase the exposure for the sport of tennis around the world, according to Novak Djokovic.

Osaka was given the honour of carrying the torch on the short final leg at the Japan National Stadium before walking the steps to light the flame and end the opening ceremony.

The four-time grand slam champion is the face of the Tokyo Games in her home country, creating extra pressure on her shoulders as she bids to strike gold.

Djokovic appreciates the absences of legendary names Roger Federer and Rafael Nadal is a blow, but he believes Osaka's presence is crucial for tennis in the battle for media coverage at the Games.

"It cannot be better for our sport, you are representing yourself, your country but also your sport in the Olympic Games, you're trying to get the hype and the attention towards our sport as much as you possibly can, so we're all contributing to that in the Olympic Village," Djokovic said when asked about Osaka's role in Friday's ceremony.

"There's a lot of attention towards the tennis players which is great, from the other athletes which is very nice to see, very nice to experience.

"Obviously you don't have Roger or Rafa. They are big stars and legends of our sport, but still there's quite a lot of great athletes, top players. Naomi is a home favourite and a lot of eyes are on her.

"Being at home playing is a lot of pressure, but it's great for our sport just in general to see that there's a lot of attention towards it."

Djokovic was speaking after overcoming Hugo Dellien with ease in his opening outing in the men's singles tournament, the Serbian triumphing 6-2 6-2 in just over an hour.

The quick win allowed the recently crowned Wimbledon champion to avoid staying out for too long in the Tokyo heat, an issue that led to Daniil Medvedev calling for matches to be pushed back to later in the day, allowing players to compete during the evenings when the temperatures have dropped.

"I agree with him 100 per cent," Djokovic said of Medvedev's suggestion. "I actually asked as well.

"My team captain, Viktor Troicki, was speaking to the referee a couple of times. To be honest, I don't understand why they don't start matches at say 3pm.

"I've heard for tennis there is some kind of curfew they have to finish at midnight, but if that's the case, I've just finished the last match and it's not even 5pm, we still have seven hours to play. 

"They have lights on all the courts, they're going to make life much easier for all of us tennis players, I just don't understand why they don't move it. 

"It's actually for the television broadcasters even better, because the later you play, the better it is for the United States and the time zones in Europe.

"I don't know, maybe the ITF (International Tennis Federation) can give you a better answer to why they chose to be played in the middle of the day. I doubt they will change the decision, but we're hoping that they will."

Kohei Uchimura offered a reminder of the skillset that has brought him three Olympic gold medals before the unimaginable happened, delivering a major jolt to hosts Japan.

The veteran national sporting hero only entered the horizontal bar event at Tokyo 2020 and hoped to sign off his Games career with a golden flourish.

But on the first full day of competition at the Ariake Gymnastics Centre, Uchimura lost his grip after a mesmerising start to his routine, and fell down onto the crash mat.

His hopes not only of gold, but of a medal of any colour, were over. Uchimura was also certain to miss out on the final, and must have known that as he climbed back onto the bar, performing and dismounting flawlessly second time around.

Uchimura won all-around gold at London 2012 and Rio 2016, also taking team gold in Brazil five years ago. He also won two silver medals both in Beijing and London.

This time, his score of 13.866 put Uchimura way out of contention, and the 32-year-old accepted his fate.

"I couldn't perform what I have practised," he said. "That's how I simply think. In the last three Olympic Games I could perform what I practised. But I couldn't do that at these Olympics.

"I hit my peak already. It has been so tough to get selected as a national team member. That itself was already really tough. So maybe that's why."

Asked whether that would be his swansong, Uchimura asked for time to consider his future. Retirement is certainly an option.

"Let me think about it when I go back to the accommodation," he said. "But I have experienced the bottom of the bottom when I wasn't doing well. So I am not as disappointed as I expected."

Uchimura's exit was a blow to the Japan team, but there may be many highs still to come in the gymnastics arena.

That was Uchimura's view, after he took time to observe and was struck by the reality that Japanese gymnastics is moving into a new era, beyond his time as talisman.

"They are a really strong team," he said. "After I finished the horizontal bar and came back to the arena to watch, I saw them sorting out their problems on their own. I felt I wasn't needed anymore."

Iga Swiatek says adjusting to the tricky Tokyo conditions will be key to winning gold after she came through her Olympics opener on Saturday.

The Polish athlete was the highest-ranked seed in action in the women's singles in the Japanese capital and comfortably dispatched of Mona Barthel 6-2 6-2.

World number one Ash Barty gets her individual campaign underway on Sunday but the Wimbledon champion was a doubles victor on the first day of action on the tennis courts.

SWIATEK OUT TO ADJUST

Swiatek was on court for a little over an hour, breaking serve six times and firing down 13 winners to Barthel's eight.

The tough hot and humid conditions were a big talking point at Ariake Tennis Centre on Saturday, and Swiatek – whose father represented Poland as a rower at the 1988 Olympics – had her say.

"I'm pretty happy that I'm into the second round and for sure not only the temperature was hard, but also the sun because on one side it was pretty hard to serve," she said. 

"But we had to adjust quickly and change our toss, so that was hard, but you know I would say the players who can adjust quicker are going to be the best ones here."

KREJCIKOVA BENEFITS FROM DIYAS RETIREMENT

Eighth seed Barbora Krejcikova was 5-2 up against Zarina Diyas before her opponent had to withdraw with an ankle problem.

The Czech now meets Leylah Annie Fernandez in the second round. Fellow seeds Belinda Bencic (9), Anastasia Pavlyuchenkova (13), Maria Sakkari (14) and Elena Rybakina (15) all made it through round one.

But Kiki Bertens, the 16th seed, was sent packing 6-4 3-6 6-4 by Marketa Vondrousova.

BARTY REVELS IN TEAMING UP WITH CHILDHOOD FRIEND

Barty is fresh off her triumph at SW19 earlier this month, and the amiable Aussie started her Olympics adventure alongside long-time friend Storm Sanders.

The sixth feeds hammered home pair Nao Hibino and Makoto Ninomiya 6-1 6-2.

"Playing with my childhood friend in what is a dream for both of us is really cool. And to be here in some of the most unique circumstances I think ever for an Olympic Games, it's really awesome for us," Barty said.

"We're very grateful and thankful that we're able to be here to play and to experience what is really cool Games."

Daniil Medvedev says it is a "joke" that players do not have longer at changeovers but will not "cry about the heat" after coming through his Tokyo 2020 opener, while Novak Djokovic started at a canter as he looks to add the next step of a Golden Slam.

Representing the Russian Olympic Committee, Medvedev appeared fatigued at times in his 6-4 7-6 (10-8) triumph over Kazakhstan's Alexander Bublik at the Ariake Tennis Park.

The conditions in the Japanese capital were sweltering on Saturday but Novak Djokovic was able to keep his cool in coasting to a 6-2 6-2 win against Hugo Dellien.

MEDVEDEV CALLS FOR MORE TIME

Medvedev, who saved three of four break points and now has a 3-0 head-to-head record over Bublik, was pretty pointed about what he feels should be done about the heat.

"Like they do in Mexico, the matches maybe should start at six (pm) because the heat actually gets much, much lighter. We all try to practise at six," said Olympics debutant Medvedev, who next plays Sumit Nagal.

"The fact that we have only one minute between changeovers is a joke. If you ask, let's say 200 tennis players that are here, I think 195 will tell you that one minute is a joke. It should be 1:30.

"But you have to play, that's the Olympics, you go for the medal. You're not here to cry about the heat. It was really tough for both of us. We talked about this after the match on the court. It was unbelievably hot. But you need to get through it."

Fellow Russian athlete Aslan Karatsev (11) defeated Tommy Paul 6-3 6-2 to set up a meeting with Jeremy Chardy, while Lorenzo Sonego (13), Ugo Humbert (14), Fabio Fognini (15) and Alejandro Davidovich Fokina (16) all progressed.

DJOKOVIC UP AND RUNNING

Since winning bronze in Beijing 13 years ago, Djokovic has not had the best of luck at the Olympics – losing in 2012 and 2016 to Juan Martin del Potro on both occasions.

But with a host of big hitters from the ATP absent – including Roger Federer and Rafael Nadal – Djokovic is the overwhelming favourite in Tokyo.

Only Steffi Graf in 1988 from either the WTA or ATP Tour has ever completed a sweep of all four slams and an Olympic gold in a calendar year, and Djokovic needs Olympic gold and victory at the US Open to match the feat.

He needed just 61 minutes here to beat Dellien of Bolivia.

MURRAY SCORES UPSET DOUBLES WIN

Andy Murray is the two-time defending men's singles champion in Tokyo, but struggles with injuries mean it would take a herculean effort to make it three in a row.

But he is also representing Great Britain in the doubles and together with Joe Salisbury upset French second seeds Pierre-Hugues Herbert and Nicolas Mahut 6-3 6-2 in their first time competing with one another.

Murray is not looking too far ahead, though, saying: "You take one match at a time, you know, so a lot of the players here are really motivated to play for their country. 

"This is such a rare opportunity for all of us and I think we all want to do well. So, yeah, just take it one match at a time."

Ecuador's Richard Carapaz powered away to Olympic gold medal glory in the Tokyo 2020 men's road race.

After finishing third in the general classification at the Tour de France, Carapaz produced a stunning ride just six days later in Japan

He crossed the line one minute and seven seconds clear of a distant chasing pack.

Silver in a sprint finish was secured by Belgium's Wout Van Aert and, barely the width of a tyre further back, bronze went to Slovenia's Tour champion Tadej Pogacar.

Carapaz, 28, adds the Olympic title to his 2019 Giro d'Italia triumph, and he slapped his handlebar, punched the air and clapped himself as he crossed the line.

The 234-kilometre race took in the lower slopes of Mount Fuji and a daunting ascent of Mikuni Pass that featured an average gradient of 10.6 per cent and sections that topped 20 per cent.

The riders finished on the Fuji International Speedway, in front of a crowd – being outside Tokyo, a limited number of spectators were allowed to watch the action.

Former Tour de France champion Geraint Thomas was involved in an early crash with Great Britain team-mate Tao Geoghegan Hart and subsequently abandoned the race.

Thomas later tweeted: "Think I must have done something bad in a previous life... Freak crash, Tao lost his front wheel and decked it in front of me. I had nowhere to go, other than the floor as well."

The Netherlands' Bauke Mollema was edged out of the medals in the sprint, finishing fourth, with fifth going to Canada's Michael Woods and sixth to American Brandon McNulty, who had joined Carapaz in a two-man break in the closing stages, only to drop off the champion's pace.

Japanese gymnastics great Kohei Uchimura dramatically tumbled out of Tokyo 2020 when he fell during qualifying for the horizontal bar final.

The home hope was bidding to add to his three Olympic gold medals but lost his grip during an elaborate part of his routine and slumped to the crash mat.

It meant his chances were over, despite Uchimura being able to get back on the apparatus, and the outcome left hosts Japan stunned. A sporting hero in his homeland, news of Uchimura's exit was instantly a top national news story.

Uchimura won all-around gold at London 2012 and Rio 2016, also taking team gold in Brazil five years ago, but his only event for the Tokyo Games was the horizontal bar.

His score of 13.866 put Uchimura well down on the scoreboard, in a lowly 18th place during the qualifying session, with only the top eight going through to the final.

The 32-year-old Uchimura has won seven Olympic medals in all, picking up four silvers to go with his gold haul, claiming two of those at Beijing in 2008 and two four years later in London.

Algerian Fethi Nourine has been suspended by the International Judo Federation and will be ordered to leave Tokyo after withdrawing from the Olympics to avoid a potential meeting with an Israeli competitor.

Nourine, 30, was scheduled to take on Sudan's Mohamed Abdalrasool in the 73kg division on Monday, ahead of a possible clash with Israel's Tohar Butbul.

Speaking to Algerian media before his suspension was announced, Nourine said he refused to "get his hands dirty", with his political support for the Palestinian cause triggering the decision to pull out of Tokyo 2020.

Nourine also withdrew from the 2019 world championships after being paired with Butbul, and he will be sent home from the Olympics after refusing to compete.

The International Judo Federation (IJF) said Nourine and his coach Amar Benikhlef had both received a temporary suspension, with a disciplinary commission to further examine the case and consider possible further punishments.

"The IJF launched the investigation and notified the Algerian Olympic Committee and the International Olympic Committee," the IJF said in a statement.

"Responding to the information, the Algerian Olympic Committee withdrew both the athlete and coach accreditation and plans to send them home, applying sanctions accordingly.

"These actions were taken based on the official recorded declarations of both Fethi Nourine and Amar Benikhlef, that were published in the media and that are in total opposition to the philosophy of the International Judo Federation. The IJF has a strict non-discrimination policy, promoting solidarity as a key principle, reinforced by the values of judo."

"According to the IJF rules, in line with the Olympic charter and especially with rule 50.2 that provides for the protection of the neutrality of sport at the Olympic Games and the neutrality of the Games themselves, which states that 'no kind of demonstration or political, religious or racial propaganda is permitted in any Olympic sites, venues or other areas', Fethi Nourine and Amar Benikhlef are now suspended and will face a decision by the IJF disciplinary commission, as well as disciplinary sanctions by the national Olympic committee of Algeria back in their country.

"Judo sport is based on a strong moral code, including respect and friendship, to foster solidarity and we will not tolerate any discrimination, as it goes against the core values and principles of our sport."

Nina Christen of Switzerland finished 16th in the 10-metre air rifle at the Rio Olympics, but she became a footnote to history five years later as the first athlete to secure a medal at Tokyo 2020.

The 27-year-old locked up the bronze medal several minutes before China's Yang Qian beat Anastasiia Galashina of the Russian Olympic Committee to take gold in the first medal event of the Games.

As soon as she was eliminated from contention for the final two, Christen flashed a smile and waved, knowing she had at least won a spot on the podium this time – no small feat on this stage.

After the first medal ceremony of the Tokyo Games, she spoke about the pressure as the competition entered the final rounds.

"You just try to not reach your head out for the medal before you have the medal," Christen said. "That is the worst thing you could do. Having in your mind, 'Oh I could win a medal, or I could be eighth which would be a failure'.

"So you just try not to think about both of them, you just try and think about what your job is like breathing, holding, aiming, balance, triggering, and then follow through.

"It helps to not think about what is behind you and obviously there are a lot of cameras and a lot of people. And it would be even more if COVID would not have hit. So yeah that is the thing you have to do, otherwise you would just crack."

Sixth seed Swiatek rolls in tennis opener

Two seeded players enjoyed easy victories in the women's singles draw as play began at the Ariake Tennis Park.

Sixth-seeded Iga Swiatek of Poland, the 2020 French Open champion, cruised past Germany's Mona Barthel 6-2 6-2 to open her first Olympics.

Anastasia Pavlyuchenkova, the 11th seed representing the Russian Olympic Committee, had an even easier time in a 6-0 6-1 rout of Italy's Sara Errani.

Pavlyuchenkova will face Germany's Anna-Lena Friedsam, who upset Great Britain's Heather Watson 7-6 6-3 in another early match.

In doubles, there was an eye-catching result for Britain's Andy Murray and Joe Salisbury, who took out French second seeds Pierre-Hugues Herbert and Nicolas Mahut, scoring a 6-3 6-2 victory.

Men's gymnastics gets under way

Nikita Nagornyy turned in the strongest showing in the opening group as men's gymnastics got under way.

Nagornyy, who won the all-around at the 2019 World Championships and was part of Russia's silver medal-winning team at Rio 2016, posted an 87.897 to lead subdivision one, which included gymnasts from the Russian Olympic Committee (ROC), China, Ukraine and Spain along with individuals from other nations.

But his showing was not enough to put the Russians on top, as China earned the top score in the group with a 262.061 to the ROC's 261.945. The top eight ranked teams qualify for the team final, with two subdivisions still to compete Saturday.

"I don't think our team was really good today, but we made our best effort," Nagronyy said. "We have a lot to do."

Brazilians start strongly on the beach

Brazil's two returning beach volleyball medallists are off to a strong start five years later.

Alison Cerutti won gold in Rio and is teamed with new partner Alvaro Morais Filho for Tokyo. They won their opening match 2-0 against Argentina's Nicolas Capogrosso and Julian Amado Azaad.

On the women's side, Rio silver medallist Agatha Bednarczuk, also with a new partner in Eduarda Santos Lisboa, won by the same score against Ana Gallay and Fernanda Pereyra of Argentina.

While she was happy to advance, Agatha found the difference between Rio's raucous crowds and Tokyo's COVID-driven quiet jarring.

"It's so different. In Brazil we have the biggest support there. Many, many people cheering for us, and here, it's silence," she said.

"Here we need to put our emotion (aside) because we don't receive the emotion from the people. For me, this is very important because I like to play with emotions."

Hend Zaza's Tokyo 2020 adventure came to a quick end but the youngest Olympian in almost 30 years told youngsters around the world to "fight for your dreams".

Aged only 12 years and 204 days old, Zaza – who was Syria's flagbearer at Friday's opening ceremony – is the youngest competitor at a Games since 11-year-old Carlos Front and and 12-year-old Judit Kiss competed in rowing and swimming for Spain and Hungary respectively in 1992.

Zaza's story is an inspiring one. Her home city of Hama was destroyed by war and finding facilities in which to train can often be a challenge.

She was beaten 11-4 11-9 11-3 11-5 by 39-year-old Austrian Jia Liu, appearing at her sixth Games – three of which in 2000, 2004 and 2008 Zaza was not even born – in Saturday's preliminary round.

"For the last five years I've been through many different experiences, especially when there was the war happening around the country, with the postponement with funding for the Olympics, and it was very tough," Zaza said.

"But I had to fight for it and this is my message to everyone who wishes to have the same situation. Fight for your dreams, try hard, regardless of the difficulties that you're having, and you will reach your goal."

Zaza conceded the excitement of Friday's ceremony coupled with the effects of jet lag may have been contributing factors in her defeat.

"Yesterday we had to start our journey to the Olympic opening ceremony at six o'clock, which is quite early, standing there, or preparing, till 11 or after 11, which is quite a long time," she added. 

"Getting ready for the morning session, plus the jet lag, which is seven hours difference from Syria, both are definitely factors that put me out of my comfort zone."

Opponent Liu revealed how she had some pressure at home from her daughter, explaining: "Everybody knows that losing to someone so young can be a bit embarrassing. 

"Yesterday I asked my daughter, 'do you know your mother is playing against someone two years older than you?' 

"Her first response was 'then you better not lose!' I said 'don't give me pressure!' I did tell the media though that if I did lose I would jump off my balcony. So my daughter said 'if you really lose, please don't jump. You've got to come home.'"

Liu also spoke of her admiration for her young opponent.

"There's sport and there's life. There are people who have to endure difficulties," she added.

"They are amazing, it hasn't been easy for them. She's a girl, too – to be in an Olympics at 12, in my heart I really admire her."

Organisers of the troubled Tokyo Olympics are facing a new headache with the prospect of an incoming typhoon early in the Games.

Monday's rowing events have already been moved to Sunday, to guard against the possibility of the powerful storm hitting Japan's capital.

Masa Takaya, spokesperson for the Tokyo 2020 organising committee, addressed the threat posed by the tropical cyclone after it was confirmed there was "adverse weather" expected on Monday.

He said the issue had been "discussed in crisis management", with the typhoon currently off shore but heading in the general direction of Tokyo, according to some forecasts.

"Unlike an earthquake, we are able to predict the path of a typhoon, therefore we can prepare in advance," Takaya added.

"Especially when it comes to rowing, as a preventative measure we have decided to change the schedule.

"For the athlete we understand it is going to be a substantial burden; however, this is a case that has been experienced in past Olympics Games as well.

"But of course we are looking very closely at the path of the typhoon to ensure there are decisions made as a preventive measure."

Already delayed by a year due to the COVID-19 pandemic, and taking place largely behind closed doors, the Tokyo Games got under way in unprecedented circumstances.

A major storm, particularly one that might cause damage and even a threat to human life, would be another daunting hurdle that organisers would need to be ready for.

Sailing and surfing are among other sports on Monday's schedule.

Takaya added: "Should a typhoon make landfall there could be damages both human and also physical damages. When that should be the case, we would take responsible measures.

"As to what will happen in the days ahead, we are not able to accurately predict. At this point, I will not be able to inform you exactly as to what [action] precisely will be taken."

Yang Qian is the first gold medallist at Tokyo 2020. 

The Chinese shooter won the women's 10-metre air rifle despite saving her worst shot of the competition for last. 

The 21-year-old trailed Anastasiia Galashina, competing for the Russian Olympic Committee, by 0.2 points entering the final shot at the Asaka Shooting Range, but Galashina missed badly, scoring 8.9. 

Yang had scored at least 10 points on every shot up to her last, but her 9.8 was still enough to take gold with an Olympic record 251.8 as Galashina finished with 251.1. 

Nina Christen of Switzerland took bronze with a final score of 230.6.