Stefanos Tsitsipas faces Andy Murray and Ash Barty will take on 2010 finalist Vera Zvonareva in the first round of the US Open.

French Open runner-up Tsitsipas and 2012 champion Murray is one of the standout matches in the opening round at Flushing Meadows.

Top seed Novak Djokovic will start his quest for a calendar Grand Slam against a qualifier in New York and could face a repeat of the Wimbledon final versus Matteo Berrettini in the last eight.

World number one Djokovic, a strong favourite for a record 21st major title with Rafael Nadal and Roger Federer absent due to injury, could do battle with Alexander Zverev at the semi-final stage.

Daniil Medvedev, the second seed, is in the bottom half with Tsitsipas, who he could come up against in the semi-final. Medvedev's first test will come against Frenchman Richard Gasquet.

Barty could come up against Iga Swiatek in the last eight and Karolina Pliskova if she makes it through to the semi-finals.

Simona Halep's encounter with Camila Giorgi is a mouthwatering first-round match, while defending champion Naomi Osaka returns to grand slam action against former US Open junior champion Marie Bouzkova.

Angelique Kerber could be a tough fourth round opponent for Osaka. Close friends Madison Keys and Sloane Stephens meet in another eye-catching first-round match.

There will be no Serena or Venus Williams at the final major of the year due to injuries.

World number one Ash Barty says her Western and Southern Open title holds her in "good stead" ahead of the U.S. Open which starts at Flushing Meadows next Monday.

The Australian defeated unheralded Swiss Jil Teichmann in straight sets in Sunday's final in Cincinnati in the perfect preparation for the U.S. Open.

Barty has never gone further than the fourth round at Flushing Meadows and did not compete in last year's U.S. Open due to COVID-19 concerns.

The 2021 Wimbledon champion, who also won the 2019 French Open crown, looms as a strong favourite for the women's singles title although she is typically refusing to get carried away.

"I think we're just excited that we've got matches under our belt in tough conditions here in Cincy, and that's put us in really good stead going into New York," Barty said.

"This week it was completely 'non-result-focused'. It was about preparing in the best way possible, knowing that we wanted to be ready for New York in a couple of weeks' time.

"Now that we've only got a week in between, we have played plenty of matches, and now it's about kind of refining as best we can to hopefully be feeling good come the first round in New York and just try and do the best that we can there."

On her favouritism, she added: "There are no certainties in sport, no certainties in tennis. It's just about playing each and every day as best you can as they come, and not focusing or concerning yourself or your self-worth with results."

Riding the wave of her Wimbledon triumph, Barty crashed out of the women's singles in the first round at Tokyo 2020 to Spaniard Sara Sorribes Tormo last month.

The Australian remained grounded after her Cincinnati victory and insisted preparations for the U.S. Open would stay normal.

"I think sometimes after big wins - and I felt it both times after the French Open and after Wimbledon - there's been a little bit of a big crash, more emotionally than anything else, because there's so much invested into that event," Barty said.

She added: "Our practice weeks before grand slams are quite normal. There is nothing fancy, no extra emphasis on anything.

"It's just gauged by how I'm feeling physically, how I'm feeling mentally, and we have had a lot of practice now as a team in being able to read each other and what we think is required.

"Then it's about going out there for the first round, whether it's the Monday or Tuesday, and try to do the best that I can. That's all I can ask of myself."

The draw for the U.S. Open will be revealed on Friday with Barty going in as the top women's seed, with Aryna Sabalenka second seed and reigning champion Naomi Osaka third.

Ash Barty won her first Western and Southern Open title on Sunday with a straight-sets defeat of Jil Teichmann in Cincinnati.

The world number one took her tally to 40 match wins and five WTA Tour titles in 2021 with a 6-3 6-1 victory.

Teichmann, ranked 76th in the world, had won all four of her meetings with top-10 players this season and accounted for Naomi Osaka, Karolina Pliskova and Olympic gold medallist Belinda Bencic during this exceptional week.

Beating Barty, however, proved a step too far. The Australian recovered from some early jitters, winning 85 per cent of points behind her first serve and breaking her opponent five times.

Teichmann's resistance faltered as errors saw her fall 5-3 behind in the opener and Barty won eight straight games to take command of the contest.

Barty needed just one match point to see out the victory, the first at Cincinnati by an Australian woman since Evonne Goolagong Cawley in 1973.

"I think being able to come through and play a really clean week and walk away with the title is probably not what I really expected of myself, but [it is] certainly nice," Barty, who did not drop a set all week, told the Tennis Channel.

Barty will be the firm favourite to win the US Open, where she has never before gone beyond the fourth round. The Flushing Meadows grand slam begins on Monday, August 30.

World number one Ash Barty reached yet another final on Saturday at the Western and Southern Open, where she will face wildcard Jil Teichmann.

Barty is through to her sixth title match of the season – and first in Cincinnati – after beating Angelique Kerber in straight sets.

In action on the WTA Tour for the first time since winning at Wimbledon, having gone to the Tokyo Olympics in the intervening period, the Australian came through a sloppy spell in the second set to advance 6-2 7-5.

Teichmann is next, taking on Barty for the first time after a stunning run continued with victory over Karolina Pliskova.

The world number 76 had already eliminated Naomi Osaka and Belinda Bencic and was a deserving 6-2 6-4 winner against Pliskova.

Barty finds the balance

Barty had been racing towards victory when she took the opener on Kerber's serve, her second break, and then went 2-0 up in the second.

But Kerber gave the favourite a scare by winning each of the next three games, belatedly finding joy against the Barty serve.

The All England Club champion has won more matches than any other player on tour this year, though, and regained her composure to break twice more for a 39th triumph of 2021.

"It's never, ever a walk in the park against Angie," Barty said. "She's an exceptional competitor and I think early on in that second set she went to another gear and it took me a few games to go with her.

"That was the change – she was able to lift her game and, even though there were some close games, she won the big points early on in the second set.

"I'm glad that I was able to find a way through there in the end.

"I had to find the balance of being aggressive and not getting too passive and letting Angie dictate.

"She moves exceptionally well, puts the balls in difficult positions, and I felt like when I was able to control the court I did a better job.

"In the games I got broken, she just saw too many second serves and was able to be assertive.

"I'm really happy to get through in the end, and to be playing for a title here in Cincinnati is awesome."

'Random' run wears on

Despite facing three seeds in succession, Teichmann has not dropped a set since losing the first against Osaka in the last 16.

Continuing that sequence against Barty will be a tough ask, but few would have anticipated Pliskova being brushed aside quite so easily.

Teichmann herself has no explanation for a sensational run of form.

"It's tough to explain," she said. "When I ask my coaches what they think of me, they always say, 'You're just an unexpected person, you do random things', so I guess that's one of them.

"I'm feeling really, really good here, the conditions, serving good, moving well, when I can I attack, I defend... What I'm feeling here, I cannot even describe it.

"It's a dream. I'm playing centre court, a final against the world number one. I cannot ask for anything else."

Ash Barty reached her sixth semi-final of the year after winning the battle of grand slam champions against Barbora Krejcikova at the Western & Southern Open.

World number one and top seed Barty – the Wimbledon titleholder – dispatched French Open champion Krejcikova in straight sets in Cincinnati on Friday.

Another slam champion awaits Barty in the form of Angelique Kerber, while wildcard Jil Teichmann continued her fairytale run with victory over Olympic gold medallist Belinda Bencic.

Coffee the tonic for in-form Barty

Australian star Barty was too good for Krejcikova, winning 6-2 6-4 at the WTA 1000 tournament.

Barty had to battle from a break down in the second set against the fast-rising Krejcikova, who has shot up from 65th in the world to a career high of number 10 this year.

After extending her season record to 38-7, Barty talked about the importance of drinking coffee in the morning.

"I travel with a French press and an AeroPress, just to have two options. Usually every tournament we go to, one of us has a cafe that we have been to before, so I have got a little section of all my local cafes from the tournaments, so we try and get out to those if we can," she said.

"This year, some places we haven't been able to; some places we have. It's been nice to get some sort of a mixture, but I'm pretty simple. I'm just a black coffee cup in the morning, and then I'm set."

Three-time major champion Kerber is next up after she was 6-4 3-3 ahead before Petra Kvitova retired hurt due to a stomach problem.

Teichmann takes down another star

Unheralded Swiss and world number 76 Teichmann claimed another scalp, this time upstaging countrywoman Bencic 6-3 6-2 in the quarter-finals.

Teichmann stunned world number two Naomi Osaka en route to the quarters and maintained her giant-slaying form in Cincinnati, where 10th seed Bencic became the latest victim.

"We hugged before the match; we hugged after the match," Teichmann said of the Bencic meeting. "We know that once we step on court it's business, it's just another player I have to deal with, and she had the same mindset. At the beginning it's obviously a bit special, but once we're in it, we just look at the game, not looking at the opponent, or at least I do that way."

Teichmann will take on fifth seed Karolina Pliskova, who advanced to her second successive WTA 1000 semi-final after Paula Badosa retired down 7-5 2-0.

Ash Barty and Angelique Kerber set up a blockbuster Western and Southern Open semi-final – but Petra Kvitova suffered a fitness scare ahead of the US Open.

World number one Barty won 6-2 6-4 against French Open champion Barbora Krejcikova, who she also defeated in the fourth round during her Wimbledon title run last month.

Kerber and Kvitova then battled it out for the right to tackle Barty in the last four, but a quarter-final that was building momentum ended prematurely when two-time Wimbledon winner Kvitova found a recent stomach problem too troublesome.

Kerber was 6-4 3-3 ahead in the contest, having recovered from being an early break down in the second set, getting her game together as 31-year-old Kvitova began to suffer.

During an injury timeout, which Kvitova called after the fifth game of the second set, the Czech received a massage to her abdominal region and played on briefly, before walking up to the net to concede the match.

It remains to be seen whether the setback in Cincinnati might have consequences for her involvement at Flushing Meadows, with the US Open due to begin on August 30.

Kvitova wrote on Twitter minutes after coming off court: "I stayed out there as long as I could. I have been struggling with a stomach issue for several days and unfortunately couldn't finish the match today. Good luck Angie - sorry to end it that way - and can't wait for the next battle with you."

Kerber said in an on-court interview: "Of course, this is not the way you would want to win the match. I hope Petra will recover as fast as possible and be ready for the US Open.

"I know she's a big fighter and fights until the last points, so I hope she is not too bad and hope she is fine really, really soon."

Kerber has now won 14 of her last 15 matches, with the exception being her Wimbledon semi-final defeat to Barty.

Barty got through in a more routine manner on Friday, albeit having to battle from a break down in the second set against the fast-rising Krejcikova, who has shot up from 65th in the world to a career high of number 10 this year.

Barty said: "Barbora served exceptionally well early in that second set and was able to take advantage of a service game of mine where I just hit too many second serves.

"I wanted to try and get a little bit more positive on her service games and then try to get myself in the points a little bit more. I'm happy to run away with that one in the end."

Novak Djokovic blamed mental and physical exhaustion after another desperate day for the Serbian at the Olympic Games meant he will leave Tokyo empty-handed.

The world number one lost 6-4 6-7 (6-8) 6-3 to Pablo Carreno Busta in the singles bronze medal match, smashing one racket against a net post and tossing another into the stands in gestures of frustration.

Djokovic then cited a shoulder injury as he pulled out of the mixed doubles third-place match. That decision meant Ash Barty and John Peers of Australia took bronze, with Djokovic and his unfortunate Serbia partner Nina Stojanovic finishing fourth.

"I am dealing with injuries. Not one, more than one," Djokovic said in an interview with Serbian media, according to tennismajors.com. "I hope that it won't stop me from going to the US Open, which is my next big goal.

"I feel bad for Nina because we did not fight for a medal in mixed, but my body said 'enough'. I have played under medications and abnormal pain and exhaustion."

The 34-year-old Djokovic said he had put his "very last source of energy" into the tournament and was satisfied with his effort, with a semi-final defeat to Alexander Zverev on Friday having left him resigned to a battle for what by his standards was perceived as a consolation prize.

But Djokovic added: "I know I've not played well today, and yesterday in the second and third set.

"The exhaustion, both physical and mental, got to me and it's unfortunate that in the most important matches I just didn't deliver, but I gave it all."

Djokovic suggested the Paris Olympics in 2024 were a possible target, although he must be becoming sick of Olympic tennis by now, having only one bronze to show for four attempts to win gold.

He took bronze in 2008 but lost to Argentina's Juan Martin del Potro both in the third-place match at London 2012 and the first round at Rio 2016.

Now there is more Games agony to digest, as well as a need to reboot ahead of the upcoming North American hardcourt swing and that US Open campaign. His hopes of a calendar Golden Slam are over but a sweep of the grand slams remains a possibility, having already landed the Australian Open, French Open and Wimbledon titles.

"I've had some heart-breaking losses at the Olympics Games," Djokovic said. "I know that those losses have usually made me stronger. I know that I will bounce back. I will try to keep going for the Paris Olympic Games. I will fight for my country to win medals."

Carreno Busta's reaction was thoroughly refreshing, with the Spaniard jubilant to secure a medal.

He said: "This week has been a very harsh week mentally for me. When I saw Novak lost, and I had to play him for this medal, I had my doubts.

"But last night I slept like I haven't slept in Tokyo. I slept for nine hours straight, that was an advantage to me. I came on to the court today knowing Spain was behind me.

"This is even more incredible than winning other tournaments. I've won Davis Cup, I've gone far in other tournaments, but winning an Olympic medal is indescribable. Words fail me, I felt Spain rallying behind me. A bronze medal is a dream come true for me."

The knock-on effort of Djokovic's withdrawal from the mixed doubles meant Barty and Peers added to Australia's medals haul without having to step on court for the third-place play-off.

Barty insisted she and Peers were worthy bronze medallists, saying: "It's incredible. It's unique circumstances and heartbreaking for Team Serbia not to get out on court.

"But for Johnny and I this is a dream come true for us. I feel like we've really deserved this one."

Novak Djokovic smashed one racket and threw another into the stands on the way to losing his bronze medal match at the Tokyo Olympics on Saturday.

Spain's Pablo Carreno Busta beat the world number one 6-4 6-7 (6-8) 6-3 to finish third in men's singles.

The shock result followed a day on from Djokovic's hopes of a Golden Slam being crushed by defeat to Alexander Zverev in the semi-finals.

In the wake of his singles third-place match setback, Djokovic also pulled out of the mixed doubles bronze match, citing a left shoulder injury.

Having already clinched the Australian Open, French Open and Wimbledon titles, Djokovic was eyeing gold at the Games before heading to the US Open in August, aiming to land the five biggest prizes in tennis in the same season.

That has never been achieved in a calendar year by a man, and Djokovic could not even manage a consolation prize from his singles mission in Japan. How serious his injury is now remains to be seen.

After levelling the singles match by taking the second-set tie-break, Djokovic boiled over in the first game of the decider, firstly when flinging his racket several rows back from the middle of the court after Carreno Busta put away a volley at the net.

Djokovic picked another racket from his bag but petulantly demolished that against a net post after dropping the third game to slide 3-0 behind, receiving a warning from the umpire for that violent outburst.

His anger may have been explained by injury or by his disappointment on Friday, when, as well as losing to Zverev, Djokovic and Serbian team-mate Nina Stojanovic were beaten in the semi-finals of the mixed doubles.

Djokovic would have had one final shot at a medal from his Tokyo trip to come later on Saturday, with the 34-year-old and Stojanovic due to face Ash Barty and John Peers in another match for bronze.

However, shortly after his singles exit, it was announced that Djokovic had pulled out of that match, handing Barty and Peers the medal.

Amid the anger and frustration exhibited on court by Djokovic, it was a banner day for Carreno Busta, as Spain celebrated another tennis medal, having won at least one in eight of the last nine Olympics.

The 30-year-old fell to the court in joy at the end of the two hours and 47 minutes it took him to defeat the world number one, his elation a sharp contrast to the emotions of his beaten opponent.

Ash Barty has conceded her dramatic Olympics mixed doubles defeat will be tough to take.

The world number one saw her hopes of winning a gold medal for Australia at Tokyo 2020 brought to an end on Friday.

Barty and partner John Peers won the first set against Russian Olympic Committee duo Andrey Rublev and Anastasia Pavlyuchenkova.

But Rublev and Pavlyuchenkova turned it around to win an epic clash 5-7 6-4 13-11 and reach the final.

With Barty already eliminated in the singles and women's doubles competitions, the best she can now hope for is a bronze medal alongside Peers.

They will meet Serbia's Novak Djokovic and Nina Stojanovic for the last spot on the podium.

"It is a tough one to swallow," said Barty. "I think those tie-breaks at times, they go either way and we just didn't quite have the run of the grain. 

"We put ourselves in a position to win the match, we just weren't able to close it out. It was a good level, no doubt disappointing."

Another chance at a medal means Wimbledon champion Barty will try to get over her loss swiftly.

She added: "But we get to fight for a medal - this one hurts but we still have an opportunity to play another match and try to win a medal for Australia. 

"We pick ourselves up pretty quickly, move on and know that we will give it our all and keep fighting right until the end.

"It's been quite a while since we've had an Australian medallist here [in tennis] at the Olympics so we're looking forward to that challenge."

In the men's doubles, Nikola Mektic and Mate Pavic are Olympic champions after they beat fellow Croatia representatives Marin Cilic and Ivan Dodig in the final.

Ash Barty has followed up her shock women's singles defeat by crashing out of the women's doubles after an epic clash with Czech pair Barbora Krejcikova and Katerina Siniakova.

World number one Barty was stunned in the first round of the women's singles on Sunday by Spain's Sara Sorribes Tormo but teamed up with Storm Sanders in the doubles, with the Australian pair reaching the quarter-finals.

However, Krejcikova and Siniakova proved too strong in a three-set thriller, winning 3-6 6-4 10-7.

"You never quite have their measure,” Barty said. "It's disappointing but there's only a couple of points in that match, here and there and it's a different result.

"We did everything right today but just weren't able to win those big points when it mattered most."

Barty's medal hopes are now entirely focused on the mixed doubles, where she has partnered with John Peers.

Andy Murray's bid to become the first male to win four Olympic tennis medals ended with defeat to Croatia's Marin Cilic and Ivan Dogic in the men's doubles.

Murray, teaming up with Joe Salisbury, went down in two hours and 18 minutes after also winning the first set. The Croatian pair won 4-6 7-6 (7-2) 10-7.

The two-time Olympic gold medalist had withdrawn from the men's singles on Sunday due to a right quad injury, preferring to focus on playing doubles. TeamGB have not fielded a mixed doubles team.

TITMUS DOUBLES UP, LEDECKY LIFTS FOR GOLD

Ariarne Titmus backed up her women's 400m freestyle gold medal from Monday with another triumph, getting the better of rival Katie Ledecky to win the 200m free.

The 20-year-old Australian won the final ahead of Hong Kong's Siobhan Bernadette Haughey and Canada's Penny Oleksiak, while Ledecky finished back in fifth.

Ledecky would claim her sixth Olympic gold medal, triumphing in the women's 1500m free, with the US claiming a rare one-two as Erica Sullivan grabbed the silver ahead of Germany's Sarah Kohler.

After being beaten twice by Titmus earlier in the meet, Ledecky said: "I approach each race with a belief in myself. It's the attitude I've always had that's why I've been so successful. Anything can happen, [the attitude I go in with is] I can beat the world record in this race. 

Japan's Yui Ohashi won the women's 200m individual medley, Hungarian favourite Kristof Milak powered to victory in the men's 200m butterfly and Great Britain triumphed in the men's 4x200m freestyle relay.

STEERING ERROR COSTS GB IN ROWING

Australia claimed two gold medals in the rowing at Sea Forest Waterway as Great Britain were left to lament a wayward finish in the men's four final.

Australian quartet Alexander Purnell, Spencer Turrin, Jack Hargreaves and Alexander Hill won in 5:42:76 ahead of Romania and Italy who claimed silver and bronze respectively.

Italy's late charge almost saw a collision with Great Britain, who finished in fourth, after veering towards the neighbouring Italian boat, narrowly avoiding a clash of oars.

GB's Oliver Cook, who steered the men's coxless four, told BBC Sport: "I do (have the steering). I need to diagnose it but I feel I screwed up a bit and as I was closing in at the end and taking big strokes at the end going for the line I forgot the steering and that’s what cost us to be honest, cost us a medal."

Australia also won the women's four narrowly ahead of the Netherlands by 0:34 seconds, with Ireland claiming the bronze more than five seconds back.

Romania secured its first gold medal at the Tokyo Olympics by winning the women's double sculls final, while France triumphed in the men's equivalent.

The Netherlands and China triumphed in the men's and women's quadruple sculls finals respectively.

RADRADRA DREAMING OF FIJI SEVENS GOLD

New Zealand will take on 2016 gold medalists Fiji in the final of the men's rugby sevens on Wednesday evening.

Fiji went through to the gold medal match with a 26-14 triumph over Argentina, who will take on Great Britain for bronze.

New Zealand were too strong for the British, winning 29-7 in their semi-final, with two tries each to captain Scott Curry and Regan Ware.

Former NRL star Semi Radradra, who plays for Fiji after switching codes in 2017 and scored a try against Argentina, said: "Playing in the Olympics is a blessing for me. I never knew I would be here.

"I think it is everyone's highlight to win a gold medal in the Olympics. That is our aim and we try to give back to our people at home."

USA RESTORES CONFIDENCE IN BASKETBALL

Team USA restored some confidence following their first-up loss to France with a comprehensive 120-66 thrashing of Iran in men's basketball.

USA played fast throughout, wasting no time in offense, with Damian Lillard top scoring with 21 points, all from beyond the arc.

Chicago Bulls guard Zach LaVine had eight assists along with his 13 points while Devin Booker, who played in the NBA Finals last week, scored 16 points and had five rebounds and three steals.

USA head coach Gregg Popovich rotated his roster on and off the court, sharing minutes, as hos team piled on 38 points in the last quarter to round out a comprehensive victory.

In Group B, Germany defeated Nigeria 99-92 despite Jordan Nowra's 33-point haul.

Ash Barty says she will keep fighting for an Olympic gold medal despite her shock opening-round defeat by Sara Sorribes Tormo in Tokyo.

The world number one fell at the first hurdle at Arianke Tennis Park, going down 6-4 6-3 against her Spanish opponent.

There were no such problems for Naomi Osaka; the home favourite overcame China's Zheng Saisai in straight sets.

BARTY TO KEEP FIGHTING FOR GOLD MEDAL

Crowned Wimbledon champion this month, Barty was unable to build on that momentum; amassing a whopping 55 errors.

World number 48 Sorribes Tormo took full advantage to set up a second-round showdown with France's Fiona Ferro.

Ash Barty's chances of winning singles gold at Tokyo 2020 came to a juddering halt at the first hurdle as she suffered a shock 6-4 6-3 to Spain's Sara Sorribes Tormo.

The world number one and recently crowned Wimbledon champion was among the favourites for glory in the women's event but put in an uncharacteristically error strewn display at the Ariake Tennis Park.

In total, the amiable Australian racked up a whopping 55 errors in a match that lasted a little over an hour and a half.

Sorribes Tormo had never faced off against Barty before but kept cool amid the stifling Tokyo conditions to progress to a second-round tie with Fiona Ferro of France.

It also marked the first time the 24-year-old had ever beaten a player ranked number one in the world.

Barty's Tokyo adventure is not over just yet, though. On Saturday she and childhood friend Storm Sanders made it through round one of the women's doubles with a 6-1 6-2 beating of Japanese Nao Hibino and Makoto Ninomiya.

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."