Simona Halep reached the second round of the Kremlin Cup on Tuesday with a straight-sets win over home hope Anastasia Potapova.

The former world number one, competing at the Moscow event for the first time since 2013, won 6-1 6-4 to set up a meeting with Veronika Kudermetova, who survived a marathon contest with qualifier Oksana Selekhmeteva.

Anett Kontaveit, who won the title in Ostrava last month, prevailed 6-3 6-3 against Katerina Siniakova. Another seed, Wimbledon quarter-finalist Ons Jabeur, retired against Ekaterina Alexandrova when trailing 6-1 1-0.

Andrea Petkovic also progressed when Jelena Ostapenko had to halt proceedings in their third set, while seventh seed Elena Rybakina lost in straight sets to Olympic silver medallist Marketa Vondrousova.

At the Tenerife Open, Camila Giorgi progressed past Aliona Bolsova 7-6 (7-4) 3-6 6-4 despite giving up two penalty games due to repeated indiscretions when line calls were called into question.

Fifth seed Viktorija Golubic lost in straight sets to Arantxa Rus, while Alison Riske was dispatched 6-1 6-4 by Donna Vekic.

Seventh seed Clara Tauson defeated Heather Watson via a final-set tie-break, while Varvara Gracheva won in the same vein against third seed Sara Sorribes Tormo in a match lasting nearly three and a half hours.

Top seed Elina Svitolina was one set up against Maria Camila Osorio Serrano when their match was suspended for the night.

Victoria Azarenka is one win away from becoming the first three-time winner of the WTA Indian Wells Open after rallying past Jelena Ostapenko in the semi-finals.

After dropping the opening set, two-time Indian Wells champion Azarenka stormed back to outlast the 2017 French Open winner on Friday.

Standing in the way of Azarenka and history is Paula Badosa, who eased past Ons Jabeur in the second semi-final in the Californian desert.

AZARENKA RETURNS TO INDIAN WELLS FINAL

Winner of the Indian Wells Open in 2012 and 2016, Azarenka is back in the decider thanks to a stirring 3-6 6-3 7-5 comeback against fellow seed Ostapenko.

Former world number one Azarenka was down a set and a break before the 27th seed fought back to prevail over Ostapenko in two hours, 20 minutes.

By seeing off 24th seed Ostapenko, two-time grand slam champion Azarenka celebrated her 33rd match win at Indian Wells – only two women have won more matches at the tournament, Lindsay Davenport (47) and Maria Sharapova (38).

"I think my season has been tricky," Azarenka said. "There were parts where I physically couldn't necessarily bring that extra level, extra fight, which was very frustrating. Then there were parts where I felt that I was looking for something to add, and I didn't necessarily know what it was. It was a lot of searching in the season, a lot of kind of stepping into unknown.

"I feel like right now I'm a bit more settled with a bit more structure, a little bit more discipline, which makes it not necessarily easier but a bit clearer what I need to do. So it doesn't take extra energy on that, so I can kind of focus my energy more on the fighting for every ball."

BADOSA UPSTAGES JABEUR

Spaniard Badosa added another scalp to her name by trumping 12th seed Jabeur 6-3 6-3.

Looking to become the first Spanish woman to win the Indian Wells Open, 21st seed Badosa made light work of Jabeur.

Badosa's success means she has beaten four top-20 opponents en route to the final, having stunned Angelique Kerber in the quarter-finals.

Having won her first title earlier this year in Belgrade, Badosa will feature in her second career WTA decider.

Victoria Azarenka booked her spot in the Indian Wells Open semi-finals after a straight-sets victory over Jessica Pegula.

Azarenka – a two-time Indian Wells champion in 2012 and 2016 – accounted for Pegula at the WTA Premier 1000 event in the desert on Wednesday.

The former world number one will play 2017 French Open winner Jelena Ostapenko in the semi-finals after she got past American Shelby Rogers.

AZARENKA FLEXES TO BOOK SEMI-FINAL SPOT

Two-time Australian Open champion Azarenka won 6-4 6-2 over Pegula, who had beaten fourth seed Elina Svitolina in the fourth round.

Pegula hit 27 winners compared to Azarenka's 21 but the American had 30 unforced errors, with her 27th-seeded opponent also winning 81 per cent of first-service points to claim the edge.

"I started going for my shots from the beginning. I knew I have to apply pressure on her," Azarenka told her post-match news conference.

"I will have the moment where I will have opportunity. I think in the beginning of the match we had a lot of great rallies, a lot of points where I was like, 'Oh, maybe I got this one,' and she got me. I felt that I really just stuck to being aggressive and being consistent. I got my opportunities."

She added: "I felt that I really played well in the crucial moments. I felt like I stepped up a lot to the occasion. That's what I'm really happy with today."

OSTAPENKO FINISHES STRONG OVER ROGERS

Ostapenko earned her final-four spot with a see-sawing 6-4 4-6 6-3 win in two hours, 15 minutes over Rogers.

In a match that included 15 breaks of serve, Ostapenko won the final five games as she rallied to secure victory and her third semi-final of the year.

"I'm really happy to be in the semi-final. It's been a tough year for me, I've been up and down," Ostapenko – the 24th seed – said during her on-court interview. "I feel like my tennis is getting better and more consistent. Today I was trailing 3-1 in the third set and I was fighting to the last point."

Former world number five Ostapenko trailed 3-1 in the final set before finishing strong to set up a showdown with Azarenka. 

"She's a great player, great champion, such a fighter," Ostapenko said about Azarenka. "Hopefully I can just enjoy it."

Iga Swiatek was knocked out of the Indian Wells Open in the round of 16, the second seed headlining the list of casualties on Tuesday.

Swiatek was swept aside by Jelena Ostapenko in the battle between two previous French Open champions in the desert.

Elina Svitolina, reigning Roland Garros champion Barbora Krejcikova and US Open runner-up Leylah Fernandez were also sent packing from the WTA Premier 1000 event.

SWIATEK CRUMBLES

After top seed Karolina Pliskova was eliminated on Monday, 2020 French Open champion Swiatek crashed out following a 6-4 6-3 defeat to Ostapenko.

Ostapenko – the 2017 Roland Garros winner – rallied from a break down in each set to reach the quarter-finals at Indian Wells, where the 24th seed hit 25 winners to 21 unforced errors in 93 minutes.

"I knew it was going to be a very tough match because she's such a great player, she won a grand slam and she's playing great tennis," Ostapenko said.

Standing in the way of Ostapenko and the semi-finals is Shelby Rodgers, who edged Flushing Meadows finalist Fernandez 2-6 6-1 7-6 (7-4).

SVITOLINA UPSTAGED BY PEGULA

Svitolina's campaign in the desert did not go according to plan, the fourth seed crushed 6-1 6-1 by Jessica Pegula.

Pegula – the 2021 Australian Open quarter-finalist – dismantled Svitolina in just 68 minutes for her seventh last-eight appearance of the season and fourth at WTA 1000 level.

"I think I've just been making a lot of really good decisions in the right moments," said Pegula, who will face two-time grand slam champion Victoria Azarenka following her seventh top-10 victory. "That obviously comes with playing a lot of matches, winning and getting confidence... it's just been more belief that I can play at this level. I think this year, I realised that, and I've been having good results."

KERBER POWERS THROUGH AS KREJCIKOVA FALLS

Three-time major winner and 10th seed Kerber will feature in the quarter-finals after overpowering Ajla Tomljanovic 6-4 6-1.

Kerber will next meet 21st seed Paula Badosa, who shocked third seed and reigning French Open champion Krejcikova 6-1 7-5.

"I think I played a pretty good match today," Badosa said. "I knew I had to play on a high level against Barbora. She's an amazing player, very talented. We played before so I knew what I was going to find there on court. I'm feeling good and I'm very happy that I could play my best today."

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. 

Olympic gold medallist Belinda Bencic eased to a straight-sets win over Sara Sorribes Tormo to maintain her good form and book a place in the Ostrava Open quarter-finals.

Third seed Bencic needed just 88 minutes to see off her 36th-ranked opponent as she made it 15 victories from her past 18 matches.

Czech wildcard Tereza Martincova is also through to the last eight on home soil after battling past French Open finalist Anastasia Pavlyuchenkova 7-6 (7-5) 7-6 (8-6).

Martincova is into her fifth quarter-final of the season and will take on number four seed Maria Sakkari, who saw off Jelena Ostapenko 6-4 6-2 earlier on Thursday.

Also through to round three is Elena Rybakina following a hard-fought 6-3 2-6 6-1 win over qualifier Magda Linette, while Jil Teichmann – who shocked former world number one Angelique Kerber in the previous round – advanced in three sets against Alison Riske.

She will face Petra Kvitova for a place in the semi-finals. 

Teenager Clara Tauson defeated Jelena Ostapenko to claim her second WTA Tour title of the year at the Luxembourg Open. 

Tauson, the last player to defeat US Open champion Emma Raducanu, had already knocked out Olympic silver medallist Marketa Vondrousova en route to the final before taking another big scalp in Sunday's showdown. 

The defending champion from 2019, Ostapenko could not stop the 18-year-old Dane prevailing 6-3 4-6 6-4. 

Tauson, who defeated Raducanu to win a Challenger event in Chicago prior to the final grand slam of the year in New York, where she was beaten by Ash Barty, struck eight aces and made just one double fault throughout the match. 

Two breaks of serve saw her take the first set in just 30 minutes, though Ostapenko rallied in the second to force a decider. 

However, the world number 70 had too much for her rival with the trophy on the line, immediately coming from a break down to haul herself level before breaking to take the match at the second opportunity. 

Ostapenko was hunting a fifth career title, but the 2017 French Open champion has made it to just one other final in 2021, triumphing at Eastbourne prior to Wimbledon. 

Danish teenager Clara Tauson set up a Luxembourg Open final showdown with Jelena Ostapenko, showing off the prowess that saw her beat Emma Raducanu in Chicago prior to the US Open.

Raducanu recovered from that setback in the final of August's Challenger tournament in the Windy City, charging to a shock Flushing Meadows triumph, but fellow 18-year-old Tauson awaits her big breakthrough at the majors.

Tauson took down a former French Open runner-up and current Olympic silver medallist in reaching the Luxembourg final, beating Marketa Vondrousova in three sets, and now must overcome a player who has been champion at Roland Garros in Ostapenko.

She prised the vital break of serve in the ninth game of the decider against Vondrousova, upping the power in her shots, before serving out for a 6-4 2-6 6-4 victory.

Tauson will be going for a second title of the year, having won the Lyon Open in March.

Defending champion Ostapenko raced to a 6-1 5-1 lead over Liudmila Samsonova but then began to misfire and had to scramble from the brink of being taken to a third set.

Ostapenko eventually prevailed 6-1 7-6 (7-4), having trailed 4-1 in the tie-break, and she will attempt to scoop a fifth WTA title on Sunday. Her most recent came at Eastbourne in the week before Wimbledon.

At the WTA tournament in the Slovenian town of Portoroz, Sunday's final will feature American Alison Riske and Italy's Jasmine Paolini.

Riske denied Slovenian Kaja Juvan a place in a home final, earning a 6-0 6-4 win in their semi-final, while Paolini sprang a shock by beating Kazakhstan's Yulia Putintseva 1-6 6-3 6-4.

Belinda Bencic made a winning return to action as the Olympic champion defeated Zarina Diyas to seal a quarter-final spot at the Luxembourg Open.

Bencic, the unlikely successor in Tokyo, triumphed in straight sets 6-1 6-3 on Thursday to tee up a last-eight encounter with Liudmila Samsonova, who the Swiss lost to in Berlin earlier this year.

It was a welcome return to form for world number 12 Bencic after her defeat to eventual champion Emma Raducanu in the US Open quarter-finals last week.

Joining the top seed in the quarters is defending Luxembourg Open champion Jelena Ostapenko, who needed three sets to overcome Arianne Hartono.

Second seed Elise Mertens also progressed, though she had to come from behind to beat Aliaksandra Sasnovich 3-6 6-2 7-5.

In Thursday's other last-16 tie, Marie Bouzkova beat Greet Minnen to round off the quarter-finals line up.

Meanwhile, Sorana Cirstea and Jasmine Paolini will meet in the Zavarovalnica Sava Portoroz quarter-finals after respective victories over Tereza Martincova and Anna Kalinskaya.

Defending champion Jelena Ostapenko booked her place in the last 16 of the Luxembourg Open with a comfortable straight-sets win over Jule Niemeier.

The world number 30 came out on top 6-2 6-2 in a little under an hour to set up a meeting with Arianne Hartono, who earlier beat Anna-Lena Friedsam 7-6 (7-5) 3-6 7-6 (7-4).

Fifth seed Marketa Vondrousova also shuffled through to the next round thanks to a 6-2 6-3 triumph against Alison Van Uytvanck, while Zarina Diyas will face tournament favourite and Olympic champion Belinda Bencic next after beating Anna Karolina Schmiedlova in three sets.

Aliaksandra Sasnovich was made to work harder for her 7-5 7-6 (8-6) win against Lesia Tsurenko, with that the longest straight-sets match of 2021 so far at two hours and 30 minutes, according to the WTA.

Greet Minnen and Mandy Minella were also victorious on Tuesday, overcoming Nuria Parrizas-Diaz and Varvara Gracheva respectively.

At Zavarovalnica Sava Portoroz in Slovenia, meanwhile, home favourite Kaja Juvan eliminated top seed Petra Martic with a 6-3 6-4 win. Sweden's Rebecca Peterson was another seed to fall, going down in straight sets to Lucia Bronzetti.

Petra Kvitova was one of a handful of seeded players to take the court at the Western and Southern Open on Monday and came away victorious against a past champion of the event. 

The 11th-seeded Kvitova defeated 2019 Western and Southern winner Madison Keys 7-5 6-4 on a rain-plagued opening day of main-draw play at the tournament outside Cincinnati, Ohio. 

The Czech saved eight of nine break points against her serve while breaking Keys three times, and that was enough to pull out the victory. 

Kvitova's countrywoman Barbora Krejcikova, the ninth seed, made her singles debut at the WTA 1000 event with a 6-3 6-2 rout of Daria Kasatkina. 

Fifteenth seed Elise Mertens also was a straight-sets winner, taking down Nadia Podoroska 6-3 6-4, while 13th seed Jennifer Brady defeated Ekaterina Alexandrova 6-3 7-6 (7-3) in a match that finished shortly before 1 a.m. local time.

Though only Krejcikova was in action Monday, the field in Cincinnati includes nine of the top 10 players in the rankings, led by Ashleigh Barty and Naomi Osaka in their first appearances since the Tokyo Olympics. 

In other matches on the first day of play, Heather Watson defeated Aliaksandra Sasnovich 6-2 3-6 6-1, while Paula Badosa outlasted Petra Martic 4-6 6-4 7-6 (11-9) in a two-hour, 34-minute marathon. 

Yulia Putintseva breezed past Zhang Shuai 6-2 6-0, Jelena Ostapenko beat Tamara Zidansek 7-5 6-1 and Jil Teichmann downed Sorana Cirstea 6-2 6-0. 

Angelique Kerber beat Maria Sakkari 6-2 6-2, with Alison Riske matching that scoreline in a defeat of Leylah Fernandez.

Shelby Rogers won 6-4 2-1 when her countrywoman Danielle Collins retired with an injury. 

Jelena Ostapenko has targeted a return to the top 10 of the WTA rankings after beating Anett Kontaveit in straight sets to win the Viking International in Eastbourne.

The Latvian was the first wildcard to reach the final since Daniela Hantuchova in 2000 and kept up her good form ahead of Wimbledon by beating Kontaveit 6-3 6-3.

French Open 2017 winner Ostapenko dominated from the start and picked up the victory in one hour and five minutes, adding to her three previous career WTA titles.

She has now won titles on all four surfaces – clay, hard, indoor and grass – and is hopeful of improving on her current ranking of 43rd in the world.

"I think it says that I can be dangerous and playing well on all surfaces probably," she said in her on-court interview. 

"Of course I enjoy to play more on just some of them, but in general I can adjust well to different surfaces.

"I think this is just the beginning for me. If I keep playing the way I played this tournament, I think I can be back in top 10 and play well.

"I just have to keep that in my mind and work even harder."

Ostapenko made good use of her strong service game to break Kontaveit's serve in the third and fifth games.

Kontaveit earned a first break in the eighth game with four service return winners in a row, but Ostapenko recovered from 40-15 in the next game to take the opening set.

It was then plain sailing for Ostapenko in the second set as she earned the only break at 2-1 and held for the remainder, clinching the victory with her second championship point.

Ostapenko will face Leylah Fernandez in the first round of Wimbledon next week.

Angelique Kerber won two games on Friday to progress to the final of the inaugural Bad Homburg Open, with unseeded Katerina Siniakova her opponent.

Kerber made home advantage count, following up a 2-6 6-3 6-3 quarter-final win over Amanda Anisimova – a match that was pushed back from Thursday when rain washed out play – with a triumph over top seed Petra Kvitova.

The former world number one came back from behind to win 3-6 6-4 7-6 (7-3) and take a spot in her first WTA singles final since 2019.

Kerber and Kvitova have now met 15 times, with the German winning on nine occasions.

She will go up against an unexpected finalist in the form of Siniakova, who defeated Sara Sorribes Tormo.

The Czech is the world number two in doubles, winning three grand slam titles in that format, and will be looking to replicate the feat of her regular partner Barbora Krejcikova, who triumphed at the French Open this year.

At the Viking International in Eastbourne, Jelena Ostapenko made light work of Elena Rybakina, while Anett Kontaveit made it into the final due to Camila Giorgi's retirement.

Latvian wildcard Ostapenko finished her 6-4 6-1 victory with zero double faults – the first time she has managed such a performance since winning in Luxembourg two years ago.

"I'm really happy with the way I played this week, and every match I played better and better," Ostapenko told a news conference after clinching a spot in her ninth career final.

"It's been a while [since making a] final, so I'm really happy to be in a final and looking forward to tomorrow's match."

The 2017 French Open champion will face Estonia's Kontaveit, who has won their previous two meetings and was 5-4 up in the opening set against Giorgi when her opponent retired hurt.

"It's actually nice to have a Baltic final, because [we're] not such big countries, but we still have good players," Ostapenko added.

"Anett, I know since juniors. We have been playing a lot, maybe not so many matches but we practice sometimes together, in juniors, and played even doubles. So I know her quite well."

Camila Giorgi extended her strong run at the Viking International in Eastbourne as she dumped out top seed Aryna Sabalenka on Thursday.

The Italian had already beaten defending champion Karolina Pliskova en route to the last eight and pulled off another upset as she claimed a 7-6 (7-5) 0-6 6-4 win over Sabalenka.

Giorgi's bid for the third WTA Tour title of her career will now continue with a semi-final against Anett Kontaveit on Friday.

The Estonian also needed three sets to book her place, bouncing back from losing the opener to beat Viktorija Golubic 2-6 7-6 (7-2) 7-5.

Daria Kasatkina was unable to build on her win over fourth seed Iga Swiatek in the last round as she missed out on a spot in the semi-finals.

The Russian took the first set against Jelena Ostapenko but failed to build on that success as the Latvian ran out a 1-6 7-5 6-2 winner.

In the final match of the day, Anastasija Sevastova was beaten by Elena Rybakina, who had earned her place in the quarters by beating second seed Elina Svitolina the day before.

World number 61 Sevastova, who eliminated Coco Gauff, won the first set 6-2, but Rybakina fought back to claim the next two 7-6 (9-7) 7-6 (7-5).

Rainy conditions ensured there was no play at this week's other WTA event held in Bad Homburg, Germany, though one player was able to secure passage to the semi-finals.

Sara Sorribes Tormo claimed her place in the next round after Victoria Azarenka, her scheduled opponent, pulled out due to injury.