Korea Open finalist Jelena Ostapenko was knocked out in the first round of the Tallinn Open after letting a one-set lead slip against Kaia Kanepi.

Ostapenko looked to be cruising after winning the opener, but Kanepi levelled in the second despite the Estonian watching five set points come and go.

Kanepi then romped to victory with a stunning final set to defeat Ostapenko 4-6 6-4 6-0 and keep her hopes of winning her home tournament alive.

In second-round action, Beatriz Haddad Maia is through to the quarter-finals after a 6-1 7-5 success over Linda Noskova.

After Haddad Maia cruised to a one-set lead, the second was a much tighter affair before the Brazilian's class showed as she broke Noskova and then held serve to earn a straight-sets win.

Second seed Belinda Bencic also secured her place in the final eight with a 6-4 6-7 (2-7) 6-3 triumph over Katie Boulter.

At the Parma Ladies Open, top seed Maria Sakkari came from behind to beat Arantxa Rus and seal her quarter-final spot.

Rus saved five out of five break points as she won the opening set 6-3 to give her hope of an upset.

Those hopes were soon dashed though as world number seven Sakkari broke twice to take the second set 6-2, before clinching the match in the third to tee up a clash with Maryna Zanevska.

World number 33 Irina-Camelia Begu made it 12 consecutive wins on clay by overcoming Matilde Paoletti in straight sets and will face fellow Romanian Ana Bogdan in the next round after she beat Anna Karolina Schmiedlova 6-2 3-6 6-3.

Fourth seed Sloane Stephens saw her tournament come to an end after she was defeated by Danka Kovinic.

World number one Iga Swiatek cruised through her first test at the US Open by swatting away Jasmine Paolini 6-3 6-0 at Flushing Meadows.

The Polish star is chasing a third grand slam title, and her second of the year after triumphing at the French Open in June.

Having held top spot in the rankings since April in the wake of Ash Barty's retirement, the 21-year-old is chasing her best result yet in New York, having reached the fourth round last year.

Against the unseeded Paolini, she made an impressive start to her quest at Louis Armstrong Stadium, with a near-flawless performance that saw her break her opponent seven times.

Swiatek showcased her ruthless streak barely a handful of minutes into the first set, rifling home three unanswered points on her first serve before promptly breaking the Italian for the first time.

Another break followed, before Paolini hit back to make matters 4-2, the only time she looked to seriously threaten the Pole's dominance.

Swiatek responded with her third break in a row, before bouncing back from another lost service game to seal the first set.

With momentum on her side, the Roland Garros victor bulldozed her opponent across the second set – and though Paolini was able to save match point once, there was never any doubt who was heading through to round two.

Data Slam: Swiatek's youthful spirit powers on

Having failed to live up to expectations to an extent when her 37-match winning streak came to an end at Wimbledon against Alize Cornet, and struggled for consistency on tour since, Swiatek responded in impressive fashion.

With 45 grand slam match wins under her belt now, she is the youngest woman to reach that number since Caroline Wozniacki did so at the 2011 Australian Open.

WINNERS/UNFORCED ERRORS
Swiatek– 14/18
Paolini – 5/18

ACES/DOUBLE FAULTS
Swiatek– 1/0
Paolini – 1/3

BREAK POINTS WON
Swiatek– 7/9
Paolini - 2/3

Caroline Garcia eased into the Poland Open final by dominating against Jasmine Paolini a day on from a superb win over Iga Swiatek.

Garcia defeated Swiatek in three sets on Friday, ending the world number one's 18-match winning streak on clay.

Paolini should have provided a far more straightforward task, and so it proved, as Garcia raced through 6-1 6-2 to make the title match.

The fifth seed will now face first-time WTA Tour finalist Ana Bogdan – a 7-5 7-5 victor against Kateryna Baindl – in that Warsaw decider.

Garcia will hope for better conditions for the showpiece, with rain having added another factor on Saturday, when the in-form French star was still recovering from stopping Swiatek.

"It's been a challenging week, especially today, with the big win yesterday, only a couple of hours to recover and be ready," Garcia explained.

"Conditions were very difficult, a lot of rain. I'm just very happy with the way I played, and I stayed very focused on the present, and it paid off."

At the Prague Open, Anastasia Potapova will face Marie Bouzkova in the final, the seventh seed playing the eighth seed.

Potapova had it largely her own way against Wang Qiang, who succumbed to a second-set bagel in going down 6-3 6-0, while Bouzkova also won in two but needed a tie-break in the opener against Linda Noskova, progressing 7-6 (7-4) 6-3.

Potapova faces a busy Sunday, as she had already advanced to the doubles final alongside partner Yana Sizikova.

Irina-Camelia Begu came from a set down to defeat Sara Sorribes Tormo 3-6 6-3 6-4 to set up a final against Lucia Bronzetti at the Palermo Ladies Open.

A contest that lasted three hours and 12 minutes, finishing just 20 minutes shy of 2am local time, began well for Sorribes Tormo, with the fourth seed taking the opening set.

The Romanian came storming back in the second though and was forcing her opponent all the way back to the advertising curtain with a series of deep shots, while also impressing on her own serve, getting 90 per cent of her first serves in across the set.

Begu ultimately served out to take it 6-3 as the local time went past midnight, but there was plenty more to come as a third set that moved at a glacial pace in the early hours of Sunday morning kept the more dedicated fans in the stands away from their beds.

An hour after the second set had concluded, the score in the third was just 3-2 to Begu after the sixth seed forced a break against Sorribes Tormo, who was warned with a time violation during the game.

That seemed to be a turning point as one break became two, before the Spaniard broke back to initially frustrate Begu, only for the Romanian to serve out victory at the second time of asking.

She will face Bronzetti in Sunday's final after the world number 78 also came from behind to win her semi-final with compatriot Jasmine Paolini.

It was a remarkable turnaround considering Paolini won the opening set 6-0, with Bronzetti only winning 33 per cent of points on her own first serve compared to Paolini's 79 per cent on hers.

However, Bronzetti found several more gears in the second set, winning 83 per cent on her first serve this time, and she carried that form into the third, recovering brilliantly to take the match 0-6 6-3 6-3.

Jasmine Paolini battled to a straight-sets victory over Alison Riske in Sunday's Portoroz final to win her maiden WTA singles title.

World number 87 Paolini had already eliminated three seeded players to reach her first final and she recovered from a slow start to see off another 7-6 (7-4) 6-2.

Third seed Riske led 5-2 in the first set after breaking her opponent's serve three times in the opening seven games, but Paolini dug deep and took four games on the spin.

The Italian used that momentum in the tie-break to open up a 5-2 advantage before getting over the line with her second set point.

After a gruelling 63-minute opening set, Paolini found the second a more straightforward affair as she broke for 3-2 and reeled off the remaining games, the last of those points coming via an error-forcing forehand.

Paolini, who won two-thirds of her second-service points and converted six of her 10 break points, is glad her hard work has paid off with a first singles success at the age of 25.

"It's been an amazing week here in Portoroz," she said in her on-court interview. "I feel just very happy, it's a big achievement for me, to win my first title. It's special to do it on the hard court.

"It wasn't easy to go through to the final. I'm proud of myself because I never gave up.

"I'm working really hard in the past couple of months. I understood more about my game, I think. I just want to keep this level for all the season that is almost finished, and to stay strong and keep this level."

Viktorija Golubic won the L'Open 35 de Saint-Malo on Sunday after a straight-sets win over Jasmine Paolini.

A finalist in Lyon and Monterrey in March, the world number 84 claimed a second career WTA125K singles title after a 6-1 6-3 triumph in 67 minutes.

Golubic held her nerve at the key moments in a close contest, landing 75 per cent of first serves and saving five of six break points.

Paolini threatened to make more of a contest in the second set after finally breaking, but the Italian dropped serve with her very next game and saw momentum slip away.

It was Golubic's first title since defeating Jennifer Brady at this level at Indian Wells two years ago.