China lead the way with four medals after the opening day of the Olympics, as Richard Carapaz doubled Ecuador's all-time tally of golds in Tokyo.

Yang Qian was the first athlete to strike gold in the Japanese capital, winning the women's 10-metre air rifle competition for China.

Sun Yiwen also claimed a gold medal for China in the women's epee individual fencing event, while compatriot Hou Zhihui came out on top with an Olympic record in the women's 49kg weightlifting.

Pang Wei claimed China's other medal on the opening day, taking bronze in the men's 10m air pistol event.

Carapaz produced a sensational ride to win the men's road race title, becoming the second athlete from Ecuador to win an Olympic gold medal.

Host nation Japan and Italy are joint-second in the medal table with a gold and a silver apiece.

There were three medals for South Korea, including a triumph for Kim Je Deok and An San in the first mixed team archery event.

The United States remain notably absent from the primitive medal table, though, having ended the first day of the Games without a medal for the first time since Munich 1972.

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."

Hugo Gaston is one win away from securing his maiden ATP Tour title, but he must overcome in-form Casper Ruud at the Swiss Open Gstaad.

Gaston, ranked 155th in the world, booked his place in his first tour-level final with a 3-6 6-3 6-3 victory over Laslo Djere of Serbia on Saturday.

The 20-year-old had never advanced past the second round at an ATP Tour event before this week. He has now won three matches in a row in a third set.

"I tried to take more time with my game," Gaston said. "I made a lot of mistakes in the first set, so I tried to change my game. My serve was better in the second and third set.

"I am really happy to be in the final. It is going to be a good match, but I will try to enjoy [this] moment."

Ruud, meanwhile, enjoyed a rather more straightforward procession in his semi-final, with world number 249 Vit Kopriva little match for the 22-year-old Norwegian.

The world number 14 needed just 74 minutes to win 6-3 6-0, reaching his second final in as many weeks following his success in Bastad.

Ruud has won 23 clay-court matches already in 2021 and is in the hunt for his fourth career title.

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.

Manchester United certainly can't be accused of standing still this year. A day after sealing the signing of Jadon Sancho, they confirmed a new contract for Ole Gunnar Solskjaer until at least 2024.

But there's still plenty to press on with for Solskjaer and United. While the signing of Sancho addresses one area that has been a problem in recent years, it appears there are still two glaring weaknesses in the first-choice starting XI.

It would seem United have identified the man to take care of one of them, with Real Madrid centre-back Raphael Varane reportedly set to bolster their defensive options. In one sense it will have been a signing long in the making, given the club were supposedly close to buying him from Lens as a teenager only for Los Blancos to get the deal over the line in the end.

Although it took Varane a little time to truly establish himself at the Santiago Bernabeu, he's gone on to enjoy a hugely successful time in the Spanish capital, winning three LaLiga titles and four Champions League crowns, among a host of other trophies.

Below, Stats Perform delves into the Opta data to see how Varane might improve United and where else they could do with reinforcements.

Physical dominance is the key

There are some obvious strengths that Varane would bring to United at the back – chief among them is his pace, which they arguably don't have a great deal of at centre-back.

While Victor Lindelof and Harry Maguire may not be considered painfully slow, neither boasts the same kind of speed as the Frenchman and that would undoubtedly be a considerable asset for United.

Recent reports have suggested Solskjaer wants to play more attack-minded football in 2021-22, and having a faster centre-back could be crucial in that sense.

In theory, it would allow United to play slightly higher up the pitch. While they didn't exactly defend deep in 2020-21, their average starting position of 42.3 metres from their own goal was deeper than six other teams – Varane's pace could potentially provide them with a little more security in a high line.

In terms of possession, there's not a great deal separating Varane and Lindelof, the man whose position is surely in doubt. The Sweden international averaged fractionally more successful passes (58.1 to 55.9) and accurate passes in the opposing half (17.81 to 17.77) per 90 minutes last season, but that could be a reflection of slightly differing styles of play implemented by the teams rather than ability.

Opta sequence data suggests they are similar as well. While Lindelof (14) may have been involved in four more goal-ending passing sequences, the expected goals (xG) value attached to Varane in those instances is actually higher (8.9 to 8.8), meaning the current United man's influence is likely being exaggerated by particularly good finishing from his team-mates.

Even their ball carrying tendencies aren't hugely different, though Lindelof does boast a greater average carry distance of 11.3m to 10.9m, while his average progress up the pitch of 5.7m is a minor improvement on the 5.4m posted by the Madrid man.

But it could be argued United don't need their right-sided centre-back to be forward-thinking all the time because that's one of Maguire's key strengths. If anything, having a dependable partner could allow for their captain to have even greater prominence going forward, as he may feel more relaxed about stepping up with better protection behind.

And that's where Varane could really shine as an upgrade on Lindelof. The Swede's effectiveness in physical duels has been routinely questioned since he joined from Benfica in 2017 – a prime example being when Mbaye Diagne bullied him as West Brom scored in their 1-1 draw with United in February.

While it's impossible to guarantee Varane wouldn't have also been dominated in that instance, he does have a better record in situations where physicality is important. In 2020-21, he won 2.4 aerial duels per game across all competitions compared to Lindelof's 1.8.

That equates to a 72.3 per cent success rate for Varane, as opposed to 59.4 for Lindelof. In fact, Maguire – the most dominant defender in that respect in the Premier League last season (100 duels or more) – only marginally edges the World Cup winner (72.9 per cent).

But when we broaden the comparison to encompass all duels, Varane comes out on top among all three of them (66.5 per cent). Maguire wins 63.8 per cent of those contests, whereas that drops to 53.1 per cent for Lindelof.

United fans have been crying out for a more physically dominant defender to partner Maguire, and in Varane they may have identified a centre-back to rival him in those stakes.

Is the Fred-McTominay axis necessary?

Centre-back certainly isn't the only area United fans would be eager to see an upgrade – there's little doubt they have room for growth in midfield, regardless of whether or not Paul Pogba leaves.

The Frenchman actually featured more from the left during the second half of 2020-21 and looked more comfortable out there with some creative freedom, rather than sitting behind Bruno Fernandes in the middle.

That meant Fred and Scott McTominay were, more often than not, the first-choice pairing at the base of the midfield.

Now, it must be said that both players have clearly improved significantly over the past couple of years and they do offer a lot to United in certain areas.

For instance, in the Premier League in 2020-21, Fred won possession more often than any other United player (228) and his 81 tackle attempts were only bettered by Aaron Wan-Bissaka (88). McTominay ranked fourth for tackles (51) and joint-second for fouls won (42), which speaks to his improved ability on the ball as well as a knack for relieving defensive pressure in transition.

But neither are particularly creative. Fred laid on 25 key passes with an expected assists (xA) value of 2.1, while McTominay created 17 chances that combined to an xA total of 0.7.

Of course, you can't expect every outfield player to offer creativity. In many cases a player's productivity – or lack of – is intrinsically linked to the role they're playing or system they're part of, and Fernandes has done a lot of the heavy lifting. But United are a side who generally have more of the ball than their opponents – do they need two 'destroyers'?

If Solskjaer is to implement a more forward-thinking setup in 2021-22, he would be wise to finally ditch the Fred-McTominay axis. More often than not, it comes across as extremely conservative.

But the caveat to that is Solskjaer's rather limited options. Donny van de Beek endured a pretty dreadful first season as he showed very little authority whenever he played, Pogba was more useful towards the left so his lack of work rate off the ball wasn't exposed, and Nemanja Matic just isn't athletic enough anymore even if he is still a talented ball-player.

Pressure now on Ole

Who's to say if another midfielder, Varane and Sancho will be enough to overthrow Manchester City while also holding off a Liverpool side who promise to be back with a vengeance and defending European champions Chelsea.

But such decisive addressing of the team's weak points should at least give Solskjaer the right tools to work with. It'll then be on him to prove conclusively he's the right man for the job, because further under-achieving with such a strong squad won't be tolerated for long, regardless of his new contract.

Jose Mourinho was sacked less than a year after signing his renewal in January 2018.

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."

Manchester United manager Ole Gunnar Solskjaer has signed a new three-year contract, the Premier League club announced on Saturday.

Manchester United manager Ole Gunnar Solskjaer has signed a new three-year contract, the Premier League club announced on Saturday.

Solskjaer's United finished as runners-up to Manchester City in the 2020-21 Premier League season and reached the final of the Europa League, losing 11-10 on penalties to Villarreal.

United confirmed the Norwegian's new deal contained an option for a further year.

Solskjaer said: "Everyone knows the feeling I have for this club, and I am delighted to have signed this new contract. It is an exciting time for Manchester United, we have built a squad with a good balance of youth and experienced players that are hungry for success.

"I have a fantastic coaching team around me, and we are all ready to take that next step on our journey. Manchester United wants to be winning the biggest and best trophies and that's what we are all striving for. We have improved, both on and off the pitch, and that will continue over the coming seasons.

"I can't wait to get out in front of a packed Old Trafford and get this campaign started."

Former United striker Solskjaer took over from Jose Mourinho on a caretaker basis in December 2018, after the Portuguese boss was sacked, and was handed the job on a permanent basis three months later.

He committed to a three-year deal at the time and has now signed up to stay at Old Trafford.

There is change afoot at the club, with executive vice-chairman Ed Woodward due to leave at the end of the year.

Woodward said Solskjaer had justified the club showing their faith in him with the extension.

"Ole and his staff have worked tirelessly putting the foundations in place for long-term success on the pitch," Woodward said.

"The results of that have become increasingly visible over the past two seasons and we are all looking forward to seeing this exciting team develop further in the years ahead.

"What is especially pleasing is the way this progress has been achieved with a blend of young, homegrown talent and top-class recruits, playing attacking football in the best traditions of Manchester United. We are more confident than ever that, under Ole's leadership, we are heading in the right direction."

Solskjaer has yet to win a trophy as boss of the Red Devils, or reach a major domestic cup final.

However, United have finished third and second in the league in his first two full seasons at the helm, guaranteeing lucrative Champions League income.

They finished five points ahead of third-placed Liverpool last term, losing just six of 38 domestic league games, albeit that was not enough to be competitive with City, who took the title by 12 points.

Their 2020-21 win percentage of 55.3 in the Premier League was the second highest United have achieved in a season since Alex Ferguson retired as manager in 2013, beaten only by the 65.8 per cent they managed under Mourinho when finishing second in the 2017-18 campaign.

The 73 league goals they scored was the highest United have tallied in the post-Ferguson era, with the team's 12 away wins in the top flight also the most they have mustered since the long-serving Scot stepped aside.

In fact, United have not lost away from Old Trafford in the Premier League since going down 2-0 to Liverpool in January 2020 – that is a run of 26 matches.

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."