Anastasia Pavlyuchenkova will meet a familiar foe in the form of Kiki Bertens after comfortably dispatching of Dayana Yastremska 6-3 6-1 in round one of the Pan Pacific Open in Osaka.

World number 28 Yastremska – ranked 13 places higher than her opponent – showed flashes of her ability and power, but she ultimately paid the price for an erratic performance.

Yastremska made 23 unforced errors and could only hit 10 winners in the 55-minute contest, with Pavlyuchenkova's more considered and careful approach paying dividends.

Pavlyuchenkova's dubious reward is a fourth encounter of the year with Bertens, who she lost to at the US Open.

The Russian did come out on top at the Australian Open but was defeated by Bertens in St Petersburg prior to her loss at Flushing Meadows.

Ninth seed Elise Mertens – the highest ranked player in action on Monday – sailed through in similarly comfortable fashion, beating Whitney Osuigwe 6-3 6-1.

Alison Riske had no such fortune, however, losing to fellow American Nicole Gibbs 6-4 6-3 despite the latter being ranked 105 places below her in the WTA rankings.

Reigning Olympic champion Monica Puig crashed out in comprehensive fashion, as Zarina Diyas hammered her 6-0 6-3.

The day's longest contest – by far – lasted two hours and 43 minutes, as Viktoriya Tomova came through 4-6 6-3 6-2 against France's Alize Cornet.

Camila Giorgi was pushed all the way in the first set against Han Xinyun before easing to victory in the second, with her 7-6 (8-6) 6-1 triumph ensuring she was one of few to prevent a surprise.

Naomi Osaka is the top seed for the tournament, though she does not begin her bid for success on home soil until later in the week.

Madison Keys – the fifth seed – starts her campaign on Tuesday, as she goes up against Daria Kasatkina.

Anastasija Sevastova came from a set and a break down to beat Katarzyna Kawa and win the inaugural Baltic Open on home soil.

Top seed Sevastova served to stay in the match in the second set before going on to win 3-6 7-5 6-4 in Jurmala on Sunday.

Polish qualifier Kawa was certainly not overawed at the end of a week in which she made her WTA main-draw debut but was unable to finish off Sevastova.

The favourite was in trouble after losing the opening two games of the second set before battling her way back into the contest.

World number 11 Sevastova, 183 places above her opponent in the rankings, rallied under pressure with the backing of a home crowd, winning five games in a row to level the match and take the initiative in the deciding set.

Kawa stopped the rot to break back at 2-2, but Sevastova broke again in the next game and went on to become the first winner of the tournament.

Kiki Bertens will face Jil Teichmann in the Palermo International final after the top seed overcame Paula Badosa in straight sets on Saturday.

The world number five, bidding to win a third title of the year, moved into the championship match with a 6-1 7-5 defeat of the unseeded Spaniard.

Bertens needed eight match points to end Badosa's resistance, advancing despite a first-serve percentage of only 49.

The Dutchwoman broke twice in a one-sided first set and three times in the second, failing to consolidate on two occasions as she made hard work of sending the 119-ranked Badosa packing.

Teichmann, the eighth seed, coasted to a 6-3 6-1 thrashing of Liudmila Samsonova.

The world number 82 won her maiden WTA title in Prague in May and will need to pull off a big upset to double her tally.

Top seed Anastasija Sevastova will face the unheralded Katarzyna Kawa in the inaugural Baltic Open final.

Latvian Sevastova saw off Anastasia Potapova 6-4 6-2 in her homeland and will be a resounding favourite to beat WTA main-draw debutant Kawa, who got past Bernarda Pera 6-2 6-3 in Jurmala.

 

Julia Goerges and Tatjana Maria exited the Ladies Open Lausanne on Tuesday, but Bucharest Open top seed Anastasija Sevastova rallied through.

The shock result of the day on the WTA Tour came in Switzerland, where top seed Goerges, ranked 25th, trailed 6-7 (5-7) 6-4 3-2 to 18-year-old wildcard Simona Waltert when she retired with a wrist injury.

Swiss teenager Waltert said: "The home crowd was pretty cool and I just loved every minute out there."

Goerges lost to French Open champion Ashleigh Barty in the Birmingham Classic final last month but has otherwise endured a tough year since winning in Auckland in the first tournament of the season.

She was joined in making an early exit in Lausanne by compatriot Maria, the fifth seed thrashed 6-1 6-0 by Allie Kiick.

Alize Cornet and Mihaela Buzarnescu, the other seeds in action, both advanced, the latter playing out an improbably topsy-turvy 1-6 6-1 6-0 win over Stefanie Voegele.

In Romania, defending champion Sevastova also won but only after overcoming a scare.

Sevastova lost the opening set to home hopeful Ana Bogdan, ranked 127th, and was taken to a tie-break in the second, before recovering to triumph.

Veronika Kudermetova and Kristyna Pliskova eased through, but fifth seed Sorana Cirstea lost an all-Romanian clash with Jaqueline Cristian.

Cori Gauff followed up her victory over Venus Williams by easing past Magdalena Rybarikova in straight sets to book her place in the third round at Wimbledon.

Teenage sensation Gauff showed her win against five-time Wimbledon champion Williams was no fluke with a dominant 6-3 6-3 triumph over Rybarikova on No.1 Court.

Earlier on Wednesday, Simona Halep progressed from an all-Romanian tie against Mihaela Buzarnescu, while third seed Karolina Pliskova continued her hunt for a first grand slam prize with a convincing 6-0 6-4 win over Monica Puig.

Caroline Wozniacki was made to work hard by debutant Wimbledon Veronika Kudermetova, eventually prevailing 7-6 (7-5) 6-3 victory, with Anett Kontaveit dispensing of Heather Watson.

It was not all plain sailing for the favourites, though, as Anastasija Sevastova and Madison Keys – 12th and 17th seeds respectively – crashed out.

Margarita Gasparyan, meanwhile, was left in tears as – after she suffered an awkward landing – she had to retire with the score at 5-7 6-5, handing eighth seed Elina Svitolina a reprieve.

HISTORY MAKING GAUFF ROLLS ON

Gauff stunned Williams in the first round, and clearly took plenty of confidence into Wednesday's clash with Rybarikova, making light work of her opponent to set up a third-round tie with Polona Hercog, who beat Keys 6-2 6-4.

"I think I played well, especially on the pressure points. She was serving amazing so it was hard to return sometimes," 15-year-old Gauff told BBC Sport.

"There's so much going on. I'm still shocked that I'm even here. I think I can beat anyone who's across the court. If I don't think I can win the match then I won't even step on the court."

 

HALEP HOLDS FIRM

Former world one Halep dominated early but lost her form in the second set to hand compatriot Buzarnescu a lifeline.

Halep rallied to break twice and win the third set, though, and she will now face two-time semi-finalist Victoria Azarenka, who overcame Ajla Tomljanovic 6-2 6-0.

"I think I'm playing okay. It's always tough on grass. But it was a tougher match than first one, so it was good that I could win it," Halep told a news conference. "I felt confident on court. I felt strong mentally."

 

WOZNIACKI EGES IT AS PLISKOVA CRUISES

Like Halep, Wozniacki was also run close in her contest with Kudermetova, who stunned the world number 19 when they met at the French Open in May.

Kudermetova forced a tie-break in the first set, but Wozniacki's experience eventually told when she reeled off the last two points in a row before closing out the win in style.

Pliskova, meanwhile, had no such issues against Puig, hitting nine aces and 23 total winners in her one-hour victory.

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