Jessica Pegula claimed her maiden grass-court title, fighting back from the brink of defeat to see off Anna Kalinskaya in the German Open on Sunday.

In just her second tournament since returning from a rib injury that kept her out of the French Open, Pegula earned her first title of the year with a 6-7 (0-7) 6-4 7-6 (7-3) victory.

Kalinskaya rallied after a slow start in the first set from 3-0 down to get to a tie-break in which she scored seven perfect points to take the early lead.

Pegula regained her composure in the second to force a decider, though she was put to the test once more when she found herself 4-1 down.

However, the world number five refused to back down and won the final five points of the match to seal the win after two hours and 38 minutes on the court.

The American had already begun the day by finishing off an efficient performance in her suspended semi-final against Coco Gauff.

She edged past the top seed 7-5 7-6 (7-2) to reach her first-ever grass-court final while earning her first Top 10 win of the year.

Data Debrief: Pegula comes out on top

Pegula saved five championship points on her way to defeating Kalinskaya to earn her fifth career title, and her first since 2023 in Seoul.

It was just Pegula's second meeting with the Russian, and once again, she had to go through three sets to get the better of her, just like at the 2019 Citi Open.

Jessica Pegula's all-American Berlin Open semi-final clash with Coco Gauff has been suspended overnight, as the duo vie for a spot in the final against Anna Kalinskaya.

Pegula led Gauff 7-5 6-6 (3-1) when rain in the German capital halted play on Saturday, with a later announcement confirming the match will not resume until Sunday.

Both players had already taken to the court once on Saturday, as Gauff's last-eight opponent Ons Jabeur retired due to illness after losing a 68-minute opening set 7-6 (11-9). 

Pegula, meanwhile, wrapped up a two-day quarter-final victory over Katerina Siniakova by a 7-6 (7-2) 3-6 6-3 scoreline.

The winner of the pair's match will also have to play twice on Sunday, with Kalinskaya lying in wait in the final after she beat former world number one Victoria Azarenka 6-1 6-7 (3-7) 6-1.

Data Debrief: Kalinskaya primed for an upset?

Whoever emerges victorious on Sunday morning, Kalinskaya will face a top-five player, with Gauff currently second in the world rankings and Pegula fifth.

Kalinskaya has already recorded three top-five victories this year. She lost her only previous meeting with Pegula in Washington D.C. in 2019 but won her first clash with Gauff in Dubai earlier this year.

Jannik Sinner will face Hubert Hurkacz in his first ATP Tour-level grass final after overcoming Zhang Zhizhen 6-4 7-6 (7-3) in the last four at the Halle Open.

The world number one entered Saturday's clash with Zhang, ranked 42nd in the world, on a 35-match winning streak against players outside the ATP's top 20.

There was to be no upset in North Rhine-Westphalia, though Zhang pushed him close in a match that featured just one break – Sinner doing the honours in the ninth game of the opening set.

Zhang failed to convert the lone break point generated in the second set as both players served confidently, the Chinese number one winning 79% of first-serve points to Sinner's 75%.

However, the Italian's quality shone through in the tie-break, the Australian Open champion converting his third match point to advance. 

Hurkacz will be his final opponent after he pulled off an upset of Zverev earlier on Saturday, the fifth-seeded Pole producing a big-serving display in a 7-6 (7-2) 6-2 win.

Sinner and Hurkacz played doubles together earlier this week, saving two match points in a thrilling win over Nathaniel Lammons and Jackson Withrow before going out to French duo Sadio Doumbia and Fabien Reboul the following day.

Data Debrief: Sinner matches Federer and Medvedev

Sinner will have a chance to capture his first title on grass on Sunday, which would represent the best possible preparation for a tilt at Wimbledon.

He is just the third player to reach the Halle Open final while top of the world rankings, after Roger Federer (in 2004, 2005, 2006, 2008 and 2018) and Daniil Medvedev (2022).

Naomi Osaka bowed out of the Berlin Open after falling short in a three-set thriller against an inspired serving display from Zheng Qinwen.

The former world number one battled, but ultimately came up short for the second time in two weeks, enduring a 6-4 3-6 6-3 defeat. 

The Japanese found herself a set down following a break point claimed in the fifth game by her opponent but rallied in the second to take the encounter to a deciding set. 

However, Zheng, who served 10 aces in the final set, proved too powerful for Osaka to secure a second victory over the Japanese after two hours and 10 minutes at the Steffi Graf Stadium.

Zheng will play Katerina Siniakova in the last 16 on Wednesday, with either Jessica Pegula or Donna Vekic awaiting should she progress. 

Data Debrief: Acing it

The victory for Zheng saw her serve 23 aces against Osaka, the highest tally in a single WTA match since Rebecca Marino vs Caroline Garcia in Guadalajara in 2022 (24).

Her success with her serving saw Zheng win 88 per cent of her first serve points, winning 44 of 50 during the match. 

Naomi Osaka bowed out of the Berlin Open after falling short in a three-set thriller against an inspired serving display from Zheng Qinwen.

The former world number one battled, but ultimately came up short for the second time in two weeks, enduring a 6-4, 3-6, 6-3 defeat. 

The Japanese found herself a set down following a break point claimed in the fifth game by her opponent but rallied in the second to take the encounter to a deciding set. 

However, Qinwen, who served 10 aces in the final set, proved too powerful for Osaka to secure a second victory over Osaka after two hours and 10 minutes at the Steffi Graf Stadium.

Qinwen will play Katerina Siniakova in the last 16 of June 19, with either Jessica Pegula or Donna Vekic awaiting should she progress. 

Data Debrief:

The victory for Zheng saw her serve 23 aces against Osaka, the highest tally in a single WTA match since Rebecca Marino vs Caroline Garcia in Guadalajara in 2022 (24).

Her success with her serving saw Zheng win 88 per cent of her first serve points, winning 44 of 50 during the match. 

Aryna Sabalenka has confirmed she will not compete at the Olympic Games in Paris next month in order to prioritise her health. 

The world number three retained her Australian Open title at the start of the year but suffered defeat in the quarter-finals of the French Open at Roland-Garros.

The Belarusian's loss was her first before the semi-final stage of a major tournament since 2022, and she intends to rest ahead of the for the hard-court season which begins at the US Open 22 games after the Olympics. 

"I prefer to have a little rest to make sure physically and health-wise I'm ready for the hard courts," said Sabalenka, who was the runner-up last year in New York. 

"Especially with all the struggles I've been struggling with the last months, I feel I have to take care of my health.

"It's too much for the scheduling and I made the decision to take care of my health."

Sabalenka is currently in Germany preparing for the Berlin Open, and faces Daria Kasatkina in the last 16 of the competition, having come from a set down to beat Marta Kostyuk on Monday. 

Katie Boulter successfully defended her Nottingham Open title on Sunday, coming from a set down to beat Karolina Pliskova 4-6 6-3 6-2 in the final.

With both players having to play two matches in one day, Pliskova started strong, powering through the first set in just 39 minutes before the the physical toll started to kick in.

Boulter found her second wave though, fighting back to force a decider in which she broke the Czech's serve three times to seal the victory.

It was a long day for Boulter, who came out on top in an all-British semi-final earlier in the day against Emma Raducanu in three sets after their semi-final was suspended on Saturday due to bad weather.

Raducanu won the first set after 80 minutes in a tie-break, but she could not pick up where she left off on Sunday, as Boulter came from behind to win 6-7 (13-15) 6-3 6-4.

Meanwhile, Liudmila Samsonova won her first title of the season after also coming from a set down to defeat Bianca Andreescu 4-6 6-3 7-5 in the Libema Open final at 's-Hertogenbosch.

Data Debrief: Boulter powers through marathon day

Boulter and Pliskova had split their first four meetings, and all five of their matches have gone the distance to a decisive third set.

The Briton won 77 per cent of her service games (10/13), while also winning 43 per cent of her return games (6/14), double the amount of Pliskova.

Emma Raducanu has turned down the chance to compete at the 2024 Olympics for Great Britain after being offered a wildcard spot by the International Tennis Federation (ITF).

Two-time Olympic gold medallist Andy Murray was also offered a spot and will compete in what could be the final tournament of his career.

Two spots are reserved for former Grand Slam winners, but Raducanu, the 2021 US Open champion, has decided against going to Paris as she continues her comeback from injury.

Raducanu is ranked too low to automatically qualify after wrist and ankle surgery last year forced her away from the sport.

She also missed the French Open, played on the same courts that will stage the Olympics, earlier this year to ensure she would be fit for the grass-court swing of the season.

Iain Bates, head of GB's Olympic tennis team, said: "I have had various conversations with Emma over the last couple of weeks and a slightly longer period where it's very clear how much being part of a British team at an Olympics would mean to her.

"I think she feels this isn't going to be the right timing for her for this summer.

"She's hopefully got many Olympics ahead of her. I'm very comfortable with the decision that she's made."

Meanwhile, Murray, who won gold in London 2012 and Rio 2016, will compete in his fifth Olympic Games and has been named alongside debutants Jack Draper, Cam Norrie and Dan Evans.

Katie Boulter is also set to make her Olympic debut as the only British woman to qualify by ranking for the Games.

The ITF will announce the full entry list for Paris 2024 on July 4.

Ons Jabeur pushed Karolina Pliskova all the way in their delayed quarter-final match, but it was the Czech that came out on top.

After rain delayed the match on Friday, and start of play on Saturday, a tough battle ensued, but Pliskova reached her third semi-final of the season with a 7-6 (10-8), 7-6 (7-3), 7-5 win.

Pliskova edged the first set on the tie-break before Jabeur forced a decider with an equally impressive win in the second.

Despite going toe-to-toe once more in the third, Pliskova just did enough to hold off top-seed Jabeur, getting a vital break to set up a meeting with Diane Parry.

Meanwhile, Emma Raducanu advanced to her first semi-final since 2022 after receiving a walkover from Francesca Jones, but her match against Katie Boulter was suspended due to rain after the first set, which lasted an incredible 80 minutes.

In 's-Hertogenbosch, Bianca Andreescu will play in the Libema Open final after her straight-sets 6-4, 6-2 victory over Dalma Galfi on Friday, earning a place in her first final of the season.

Data Debrief: Jabeur unable to stop the break

Jabeur had the opportunity to win seven break points during the quarter-final, but had a measly 14 per cent conversion rate (1/7). Pliskova, meanwhile, won half of hers (2/4).

The Czech also won 94 per cent of her service games (17/18), just one more than Jabeur. It was the fine margins that won out in Nottingham.

Naomi Osaka crashed out of the Libema Open despite fighting to a tie-break in the final set, with Bianca Andreescu progressing to the semi-finals after a 6-4, 3-6, 7-6 (7-3) win.

Osaka's match was interrupted by rain early on with her in the lead, but Andreescu came back out in top form to take the first set.

The Japanese raced through the second though, taking a 5-0 lead before holding off Andreescu's fightback to go into a decider.

Despite an impressive comeback to force a tie-break in the final set, Osaka became sloppy, with her mistakes contributing to the Canadian's path into the semi-final, where she will face Dalma Galfi.

Elsewhere, Alex de Minaur is through to the semi-finals after a comfortable straight-sets victory over Milos Raonic.

Despite a long break due to bad weather, the Australian eased into the next round with a 7-5, 6-2 victory on Friday.

He will face either Ugo Humbert or Gijs Brouwer in the next round.

Data Debrief: Osaka not close enough, De Minaur in cruise control

Despite winning more points (98 compared to 94), and winning more games (16 to 15), Osaka could not hold her nerve in the tie-break to reach the semi-finals.

Competing as the top seed for the first time in his tour-level career, De Minaur felt no pressure as he rallied in the second set to ensure Raonic would not find a way back into the match, winning his last five games in a row on his way to victory. 

Emma Raducanu cruised into the quarter-finals of the Nottingham Open with a straight-sets victory over Daria Snigur on Thursday.

After making her return from injury in the previous round, Raducanu made light work of the match, winning 6-2, 6-2 as her preparation for Wimbledon continued.

Despite a bright start from Snigur, which saw her break the Briton's serve in the opening game, she could not hold off Raducanu's challenge as she reeled off six games in a row to win the first set.

With her confidence back, Raducanu secured two breaks in the second set to ease through and will face Francesca Jones or Ashlyn Krueger in the next round.

Data Debrief: Raducanu easing back to full threat

After a slightly shaky first round against Ena Shibahara, Raducanu looked a confident figure on the court as she dispatched Snigur.

Her serve proved a highlight as she served 11 aces in the second set, and had a 70 per cent win rate on her first serve throughout the match.

Top seed Jessica Pegula bowed out of the Libema Open following a three-set defeat by Aleksandra Krunic in s'Hertogenbosch.

The world number five was ousted 7-6 (7-3) 6-7 (3-7) 6-4 by the 2018 winner of this event, who claimed the fifth top-10 victory of her career and advanced to the quarter-finals.

Now ranked 400th in the world, Krunic recovered from an earlier break in the opening set to force a tie-break, in which she won five straight points to draw first blood.

The Serbian also cancelled out a break before heading into another tie-break, but Pegula reeled off five points on the spin this time to level.

The American was appearing in her first tournament since April, having missed the European clay-court season with a rib injury.

However, she saw two break-point opportunities go begging in the opening game of the deciding set, and Krunic crucially broke in game three before holding out for an impressive victory. 

Later on, Alex de Minaur booked his place in the quarter-finals of the competition after a straight-sets victory over Zizou Bergs. 

The world number nine had to work for his victory over the Belgian, overcoming his opponent 7-5 6-4 to earn his first triumph on a grass court this year. 

Bergs matched his opponent in the opening exchanges, but the Australian would eventually prevail, winning a break-point and following up without dropping a point in the final game. 

De Minaur would again endure a difficult set to confirm the victory as Bergs threatened to level the encounter, but the number one seed again showed his class, finishing the contest in style. 

De Minaur will face either Roberto Bautista Agut or Milos Raonic in the next round.

Data Debrief: Krunic rekindles special memories as de Minaur earns maiden grass win

Krunic will forever have an affinity with s-Hertogenbosch, where she won her only career WTA title six years ago.

And the 31-year-old claimed an impressive scalp here to reach her first WTA quarter-final since 2022 - and first on grass since that 2018 triumph.

De Minaur impressed once again, winning 86 per cent of his first serve points against the Belgian. 

Their meeting in s-Hertogenbosch was the first between the pair, with De Minaur able to overcome his quarter-final defeat to Alexander Zverev at the French Open. 

Naomi Osaka will play Bianca Andreescu in the Libema Open quarter-finals after a commanding straight-sets victory over Suzan Lamens.

The four-time major winner took just 54 minutes to wrap up a 6-2 6-2 win over her Dutch opponent in t'Hertogenbosch.

Osaka looked sharp as she sought her second WTA quarter-final appearance of the season, having also reached that stage in Doha four months ago.

The Japanese hit 21 winners to 13 unforced errors, while converting four out of five break points against the world number 140.

Next up for Osaka is a showdown with 2019 US Open champion Andreescu in the last eight.

Data Debrief: Osaka storms into first grass-court quarter-final in six years

It was a dominant display by Osaka, who hit nine aces and won 15 of her 17 points on first serve (88.2 per cent).

The four-time major winner subsequently advanced to her first WTA quarter-final on grass since the 2018 Nottingham Open.

Emma Raducanu felt like she was playing "two v one" as the Briton criticised umpire Ana Carvalho following her Nottingham Open first-round victory over Ena Shibahara.

The former US Open champion, who opted to miss the French Open to focus on preparing for the grass-court season, overcame the Japanese 6-1 6-4 in her first match since losing to Maria Lourdes Carla at the Madrid Open in April.

It was also Raducanu's first win on surface since the 2022 Wimbledon Championships, having missed last year's grass-court season after undergoing wrist and ankle surgery that, at one point, left her confined to a mobility scooter.

Although, the 21-year-old was left unhappy with several questionable decisions by umpire Carvalho, suggesting some of the calls were deliberately made in order to extend the contest.

It comes just 24 hours after fellow Briton Harriet Dart slammed "pretty appalling" officiating during her defeat to Katie Boulter in Nottingham, where electronic line-calling technology is not in use.

Nevertheless, Raducanu was pleased to eventually prevail and book her place in the second round.

"I feel like I was playing two v one on court, it was insane," said Raducanu. "I would have used probably at least four challenges!

"I think a lot of the time they go both ways. Today, I felt they were all against me, but it just makes me feel better that I managed to beat her and the umpire as well.

"It is difficult when there is no challenge, but it is something everyone has to deal with. You can be fortunate in some ways. Maybe it was just trying to make the match more competitive.

"It's something I had to deal with and overcome. I am very pleased with the attitude I came out with from the get-go and also having to deal with the adversity.

"I haven't played in a match for a while. Playing someone who comes through qualifying and is used to the conditions, I am very pleased to have won that match."

The world number 209 was also thrilled to get a win under her belt on home soil, and set up a last-16 clash with Ukrainian Daria Snigur, who defeated second seed Marta Kostyuk.

"An element of me forgot what it was like to play at home and have that support behind me, and it is amazing," she added. "It's a great feeling.

"I am very lucky to have great support wherever I play, but it's not quite like coming and playing in the UK. It's something that me and all the Brits cherish and look forward to every year."

Ons Jabeur eased past Camila Osorio in straight sets to progress to the next round of the Nottingham Open. 

The three-time grand slam champion returned to the East Midlands for the first team since 2014, and got her grass court season off to a winning start with a 6-2 6-3 win over the Colombian. 

It was the perfect start for the world number 10, who earned a break point in the opening game before going on to win the first set, but the Tunisian was made to work to secure her triumph. 

Osorio matched Jabeur early on, but the top seed at the tournament showcased her class to come through the encounter, building on her quarter-final run at the French Open as her preparations for Wimbledon continue. 

Jabeur will face Linda Fruhvirtova in the next round of the competition. 

Data Debrief: Top seed Jabeur through to next round

The world number 10 was at her clinical best, winning 84 per cent of her first serve points. 

Jabeur's win saw her unbeaten record continue against Osorio, having last prevailed at Roland-Garros in May.