Viktorija Golubic came from a set down to beat lucky loser Mai Hontama and move into the second round of the Lyon Open on Wednesday.

Third seed Golubic was given the run-around by Hontama in the first set before fighting back to win 1-6 6-4 6-4.

Golubic had to dig deep to secure a meeting with Vitalia Diatchenko, who beat Anna-Lena Friedsam, as Hontama's deft drop shots had given her a scent of pulling off an upset.

The Swiss broke six times and saved six break points, wrapping up a well-earned victory in two hours and 10 minutes.

Golubic's compatriot Stefanie Voegele bowed out at the second-round stage, losing 6-3 7-5 to second seed Sorana Cirstea.

Anna Bondar reached the quarter-finals when Katie Boulter retired due to injury after losing the first set 6-3.

Alison Van Uytvanck won the final match of the day, getting the better of Varvara Gracheva 6-2 6-4 to advance to the last eight.

Petra Kvitova was convincingly beaten to bow out of the Australian Open in straight sets in the first round on Tuesday.

The Czech 20th seed, a finalist in Melbourne in 2019, was crushed 6-2 6-2 by Romanian Sorana Cirstea on John Cain Arena.

Kvitova produced a staggering 39 unforced errors with just seven winners to bow out in 71 minutes.

It continued a mixed record at Melbourne Park for the two-time Wimbledon champion.

Kvitova has now bowed out of a grand slam in the first round 11 times – with four of those coming at the Australian Open.

Cirstea will face either Misaki Doi or Kristina Kucova in this year's second round.

The 31-year-old also beat Kvitova at the Australian Open last year – in the second round.

Elina Svitolina required a third-set tie-break to progress at the Indian Wells Open, while former world number one Victoria Azarenka handled an old rival in straight sets and Simona Halep fell victim to an upset. 

Svitolina – the fourth seed – dropped the first set to 32nd seed Sorana Cirstea before fighting back to reach the round of 16 at the WTA Premier 1000 event on Sunday.

Two-time grand-slam champion Azarenka joined Svitolina in the next round after knocking out seventh seed Petra Kvitova, but 11th seed Halep became Aliaksandra Sasnovich's latest conquest. 

SVITOLINA SURVIVES CIRSTEA SCARE

Svitolina needed two hours, 32 minutes to outlast Cirstea 4-6 6-4 7-6 (7-3) and remain unbeaten in three career matches against the Romanian. 

The Ukrainian was on the defensive throughout the opening set, facing 11 break points on her serve and managing to save eight of them before Cirstea finally won out. 

Svitolina tightened things up from there, saving four of five break points the rest of the match. 

"It was a very tough match today, and I was fighting and trying to find my game," said Svitolina, who will face Jessica Pegula next. "It was a bit of a rollercoaster.

"I wish I could play a little bit better in the first set, I had chances to grab that set, but unfortunately it didn't play the way I wanted. I had to fight for every point, and Sorana played a great match, I think. I'm happy that I could win today."

AZARENKA TAKES DOWN KVITOVA

Azarenka won her first two Tour-level matches against Kvitova in 2008 and 2009 but had prevailed only once in six meetings since then before Sunday's 7-5 6-4 triumph. 

The two-time Indian Wells champion converted break-point chances when she needed them, six of 11 in all, and had 18 unforced errors to Kvitova's 26. 

"It was important to just stay there, really take my opportunities, not to let her," Azarenka said after taking down two-time Wimbledon winner Kvitova. "If she gets in the groove in couple points, not to kind of let her extend that streak, if you want to call it that.

"I was trying to still create opportunities for myself, be more aggressive, and honestly just believing also that what I'm doing is right and see how I can execute that. So intention was good. Execution followed after."

ANOTHER UPSET FOR SASNOVICH

After knocking off US Open champion Emma Raducanu in the second round, Sasnovich ushered out another grand slam winner in Halep 7-5 6-4 and will next face Azarenka.

The world number 100 had 22 winners to 16 for Halep and won 61.8 per cent of points on her serve as she reached the round of 16 at Indian Wells for the first time. 

In other matches Sunday, ninth seed Anastasia Pavlyuchenkova fell to 23rd seed and US Open runner-up Leylah Fernandez 5-7 6-3 6-4, while second seed Iga Swiatek dropped only one game in a 6-1 6-0 demolition of Veronika Kudermetova. 

Jelena Ostapenko and Shelby Rogers also advanced. 

Serena Williams played down her prospects of winning a record-equalling 24th grand slam title at the French Open, insisting the standard on the WTA Tour is now so high that every match is a battle.

The three-time champion at Roland Garros made it through to the last 16 thanks to a 6-4 6-4 win over Danielle Collins.

However, the American - who has been stuck one slam behind Margaret Court's career tally ever since winning the 2017 Australian Open - had to work hard on Friday, including battling back from 4-1 down in the second set as she reeled off five games in a row to move on.

Williams is the only top-10 player left in her half of the draw following Aryna Sabalenka's exit earlier in the day, yet knows there is a long way to go in her quest to reign once more in the Paris.

"There's still a lot of matches, a lot of great players, as we can see," Williams told the media.

"There's so much depth in this game now, it doesn't matter if you're playing in the first round or not, you really have to fight for every match and nothing comes easy."

After struggling for form coming into the tournament, Williams feels tough contests like the one she had against Collins can only be beneficial.

"Today in particular, this whole week thus far, I just needed a win," the seventh seed said. "I needed to win tough matches. I needed to win sets. I needed to win being down.

"I needed to find me, know who I am. Nobody else is Serena out here. It's me. It's pretty cool."

Elena Rybakina – an impressive 6-1 6-4 winner against Elena Vesnina in little over an hour - is the next hurdle for Williams to clear.

SABALENKA SUNK, AZARENKA EASES THROUGH

With Ashleigh Barty forced to retire through injury and Naomi Osaka withdrawing from the event due to mental health concerns, Sabalenka was the highest seed left – well, she was until coming up against Anastasia Pavlyuchenkova.

Sabalenka rallied after losing the first set to draw level but then fell apart in the decider, serving four double faults and producing 17 unforced errors.

Pavlyuchenkova capitalised to complete a 6-4 2-6 6-0 triumph that avenges a loss to her opponent at the semi-final stage in Madrid during this year's clay-court swing.

Next up for the 31st seed will be Victoria Azarenka, the former world number one who eased past Madison Keys 6-2 6-2.

"I felt I played very disciplined today. I played smart. I tried to be aggressive," Azarenka said after winning in 70 minutes.

"My opponent, Madison, she really likes to dictate the points, so I tried to take that away from her, really step in, and make a lot of different balls so I’m pretty proud I was able to sustain my level."

MIXED FORTUNES FOR ROMANIAN DUO

Sorana Cirstea explained how a change in approach has helped her roll back the years after overcoming Daria Kasatkina in straight sets.

The Romanian's solitary quarter-final appearance at a slam came in the French capital 12 years ago but she has been in excellent form on clay this year, including claiming a title in Istanbul and a final appearance in Strasbourg.

"I'm taking it day by day, like I'm not going too far ahead with my mind," Cirstea told the media. "I'm actually enjoying all this process. Definitely I'm enjoying [it] much more than I did 12 years ago, and I think this comes with maturity."

While Cirstea has not made it this far in a grand slam for a long while, next opponent Tamara Zidansek is into the last 16 at a major for the first time.

Despite losing the first set in a hurry against Katerina Siniakova, the Slovenian rallied impressively to seal a 0-6 7-6 (7-5) 6-2 victory and continue an impressive run that was started by an upset over Bianca Andreescu.

Paula Badosa also needed three sets to overcome Romania's Ana Bogdan, including saving a match point, and extend her winning streak to eight matches as she came out on top 2-6 7-6 (7-4) 6-4. Indeed, for the season she now boasts a 16-2 record on clay.

Barbora Krejcikova clinched a first Tour-level singles title of her career as she dispatched Sorana Cirstea 6-3 6-3 in the final of the Internationaux de Strasbourg.

World number 38 Krejcikova lost to Garbine Muguruza in the Dubai Tennis Championships final in March but suffered no such disappointment this time around, overcoming her Romanian opponent in one hour and 41 minutes.

Cirstea was in fine form this week following her Istanbul success, but the world number 61 was on the back foot from the off after losing her first two service games, offering up six break points in the process as Krejcikova reeled off four games in a row.

Krejcikova squandered two set points as Cirstea broke back, but the Czech took the lead at the third time of asking.

Cirstea rallied straight away in the second set, yet problems on her own serve continued as she suffered successive breaks and those errors ultimately handed Krejcikova an advantage she did not relinquish, with the 25-year-old sealing her maiden title with a powerful cross-court forehand.

Unseeded duo Sorana Cirstea and Jule Niemeier marched into the semi-finals of the Internationaux de Strasbourg on Thursday.

Romanian Cirstea emphatically beat eighth seed Zhang Shuai 6-2 6-1 and moved into the last four after Bianca Andreescu withdrew following her second-round success over Maryna Zanevska due to an abdominal injury.

Cirstea lost only seven of the 31 points on her first serve and did not face a solitary break point in an impressive victory ahead of the French Open.

She broke Zhang on four occasions and will do battle with Magda Linette for a place in the final.

Linette took out fourth seed Yulia Putintseva 6-3 6-3, breaking once in the first set and three times in the second.

Qualifier Niemeier upset seventh seed Shelby Rogers, completing a 6-4 7-6 (8-6) victory following a rain delay. 

The German will look to pull off another surprise when she faces Barbora Krejcikova, who eliminated Ekaterina Alexandrova with a 7-6 (7-4) 6-1 victory.

Bianca Andreescu had little trouble in her first outing on clay this season, easing past Andrea Lazaro Garcia at the Internationaux de Strasbourg.

Andreescu had been absent from the WTA Tour since making the final in Miami back in March, when she was forced to retire when a set and 4-0 down against Ashleigh Barty due to an ankle injury.

A positive COVID-19 test result ruled her out of competing in Madrid and also Rome, though the Canadian showed few signs of rust on her return.

The top seed defeated the world number 279 – who was making her main-draw debut after coming through qualifying – in just 61 minutes, a 6-1 6-2 triumph sealed in a hurry thanks to five breaks of serve.

Champion at the 2019 US Open, Andreescu did not play in any grand slam event last year. She has only featured in the main draw at the French Open once before, reaching the second round at Roland Garros two years ago.

"I feel really, really good," the world number seven said after an impressive opening display. "I had really good preparation coming into this tournament, so I'm super happy."

Also in action on Monday, Yulia Putintseva overcame Sweden’s Rebecca Peterson via a tie-break in the deciding set of their see-saw contest.

The fourth seed eventually prevailed 6-4 3-6 7-6 (7-2) after three hours and 20 minutes on court, booking her a spot in the last 16 of the tournament.

Zhang Shuai was successful in her first outing, beating Misaki Doi 7-5 6-4. Barbora Krejcikova was another seed to make it through, having led 6-3 3-0 when opponent Oceane Dodin retired.

Caroline Garcia overcame Zarina Diyas 7-5 6-2, while Maryna Zanevska needed less than an hour to overcome Yuliya Hatouka 6-2 6-1 and set up a clash with Andreescu.

Jil Teichmann was also a winner in straight sets against Anna Blinkova, but Venus Williams' campaign is over early after going out to Sorana Cirstea, who dominated a decider to triumph 6-1 2-6 6-1.

Sorana Cirstea claimed the Istanbul Open title without dropping a set after overcoming top seed Elise Mertens 6-1 7-6 (7-3) in the final.

Cirstea secured just her second tournament triumph on the WTA Tour – and first since Tashkent in 2008 – in a contest of two contrasting sets on Sunday.

The Romanian dominated in the opener, breaking three times as her opponent committed 16 unforced errors while failing to hold serve.

However, Mertens responded impressively to seize control of the second set, some superb groundstrokes allowing her to open up a commanding 5-2 lead.

Cirstea hit back to take the next four games in a row and while unable to serve out for the match when 6-5 up, she would not be denied a long overdue success in the tie-break.

Victory was secured with a crunching backhand winner on the first of three match-point opportunities, ending a see-saw set that had spanned 67 minutes.

Mertens had reached the final by ending a nine-match winning run for Veronika Kudermetova, who just so happened to be her doubles partner at the event in Turkey.

World number one Ash Barty survived a scare to reach the semi-finals of the Stuttgart Open with a 2-6 6-1 7-5 win over Karolina Pliskova.

The Australian started slowly in the quarter-final of the WTA 500 tournament on Friday as Pliskova broke her serve twice in taking the first set, before Barty hit back with three breaks of her own to force a decider.

Barty was two points away from losing on five occasions as world number nine Pliskova served for the match at 5-4 in the final set.

But she broke the Czech's resolve eventually, sealing victory when Pliskova hit the ball long after a baseline rally.

The win was Barty's eighth consecutive victory over a top-10 opponent and she said in a media conference afterwards that facing top players in the world brings the best out of her.

"When you come up against top-10 opponents, you have to go to that level above to be able to compete. They force you to bring your best," Barty said.

"With a lot of the girls in the top 10, we've had plenty of matches that have gone either way, different experiences, so each time I love that challenge of testing myself against the best."

Barty will face Elina Svitolina in the semi-finals after she saved two match points to claim a 6-7 (4-7) 7-5 6-2 victory over Petra Kvitova.

In the other half of the draw, Simona Halep breezed through to the semi-finals with a 6-1 6-4 win over Ekaterina Alexandrova.

Halep clinically closed out the first set, and although Alexandrova showed more fight in the second, the world number three did not allow her a route back into the match.

Halep will face Aryna Sabalenka following the Belarusian's 7-5 4-6 6-1 win over Anett Kontaveit.

In the Istanbul Cup, top seed Elise Mertens secured her place in the semi-finals with a 6-4 6-4 win over Katerina Siniakova.

Mertens will face Veronika Kudermetova who fought back from a set down to clinch a 2-6 6-3 6-3 win over Ana Bogdan.

The other semi-final will see Sorana Cirstea play Marta Kostyuk. Cirstea progressed after Fiona Ferro, trailing 6-4, retired through injury while Kostyuk beat Ana Konjuh 7-5 4-6 6-3.

Petra Kvitova made a surprise second-round exit at the Australian Open on Wednesday.

The Czech ninth seed and two-time Wimbledon champion fell to Sorana Cirstea 6-4 1-6 6-1 on a warm day at Melbourne Park.

Runner-up in 2019 and a quarter-finalist last year, Kvitova bowed out after a costly 44 unforced errors in two hours, three minutes.

Cirstea, meanwhile, reached the third round of the Australian Open for just the fourth time.

It marked the Romanian's first win over a top-10 player since 2017, when she beat Karolina Pliskova in Beijing.

Cirstea will face another Czech, 19th seed Marketa Vondrousova, in the third round.

Kvitova is among 10 seeds to have departed in the women's draw, joining Victoria Azarenka, Angelique Kerber, Bianca Andreescu, Petra Martic, Johanna Konta, Maria Sakkari, Wang Qiang, Zhang Shuai and Alison Riske.

Garbine Muguruza continued her impressive form to book a meeting with Ash Barty in the Yarra Valley Classic final.

Muguruza, the Spanish sixth seed at the WTA 500 event, crushed Marketa Vondrousova 6-1 6-0 on Saturday.

The two-time grand slam champion has lost just 10 games in four matches on her way to the final.

Muguruza lost just eight points on serve against Vondrousova while converting five of 11 break points.

She will meet Barty in the final after the Australian benefited from Serena Williams' withdrawal as the 23-time grand slam winner deals with a shoulder injury.

Naomi Osaka and Victoria Azarenka also withdrew on Saturday from the Gippsland Trophy and Grampians Trophy respectively.

At the Grampians Trophy, Anett Kontaveit was given a passage into the semi-finals, where Maria Sakkari awaits after her 6-4 6-2 win over Angelique Kerber.

Jennifer Brady and Ann Li will meet in the other semi after wins over Barbora Krejcikova and Sorana Cirstea respectively.

Elise Mertens will play the Gippsland Trophy final after Osaka's withdrawal with the Belgian to face Kaia Kanepi, who overcame Ekaterina Alexandrova 6-3 7-6 (8-6) to reach her first WTA decider since 2013.