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.

Marin Cilic had to come from behind to defeat Dominic Thiem as he sealed a spot in the quarter-finals of the Tel Aviv Open.

Cilic, who was also celebrating his 34th birthday, was given a thorough test initially by the wild card, but Thiem ultimately faded away.

After losing the first set, second seed Cilic eventually won 6-7 (6-8) 6-2 6-4 as he succeeded in putting the Austrian's serve under intense pressure, setting up a quarter-final with either fifth seed Botic van de Zandschulp or Liam Broady.

Reacting to the victory, Cilic said: "I think it was a fantastic match. I think it was an amazing, amazing level.

"We don't get so many chances to play [a] second-round [match] in front of this big [of a] crowd, so thank you so much. It was a fantastic birthday."

Maxime Cressy, seeded fourth, was far more comfortable as he defeated fellow American Sebastian Korda 6-4 6-4 thanks to a break of serve in either set.

The only other seed in action was seventh favourite Adrian Mannarino. The Frenchman came unstuck against his countryman Constant Lestienne, who won 7-6 (7-2) 6-4.

At the Sofia Open, two high seeds were surprisingly dumped out on Wednesday.

Home favourite Grigor Dimitrov, seeded third, was beaten in straight sets by Ilya Ivashka, who showed commendable focus to see out a 6-3 7-6 (7-3) win despite the crowd's support of his opponent.

Number six seed Nikoloz Basilashvili was the other big name to suffer a shock defeat, with 38-year-old Fernando Verdasco beating him 7-6 (7-1) 7-5 as the seven-time ATP Tour title winner rolled back the years.

Lorenzo Musetti bucked the trend, however. Seeded fourth, the Italian was made to sweat by Bulgaria's Alexander Lazarov as the first two sets went to tie-breaks, but the Italian had too much in the end as he won 6-7 (5-7) 7-6 (10-8) 6-2.

Earlier in the day, Musetti's compatriot Lorenzo Sonego comfortably dealt with Bernabe Zapata Miralles 6-3 6-4.

Novak Djokovic wants to replicate Roger Federer's emotional farewell by having all his tennis rivals present when he brings down the curtain on his own career.

Federer played his final top-level tennis match in last week's Laver Cup when partnering long-time rival and friend Rafael Nadal in doubles competition

Djokovic and Andy Murray, two of Federer's other great adversaries, were also part of the 41-year-old's side at London's O2 Arena.

Despite boasting an all-star cast of talent, Team Europe fell to a first ever defeat against Team World, yet it was Federer's teary send-off that made the headlines.

And Djokovic, who has no current plans to retire, would like to share a similar moment at the end of his playing days.

"It was just a very touching, very emotional moment," Djokovic told reporters ahead of his second-round match against Pablo Andujar at the Tel Aviv Open.

"Seeing his kids and his family, it got me emotional as well. I also must say I was thinking about how it would look for me when I say goodbye to tennis.

"There is definitely one thing that I will wish to have, other than, of course, my family and the close people in my life, I would love to have my biggest rivals and competitors there. 

"Because it added something more special; it added more importance to that moment."

Federer retires as a 20-time grand slam winner – one fewer major title than Djokovic, who is himself one behind men's record holder Nadal.

With Federer now out of the picture, Djokovic says Nadal remains his biggest rival on the court.

"We played the most matches against each other of any other rivalry in the history of tennis," he said. "The rivalry is very special and keeps going. 

"Hopefully, we'll get a chance to play against each other more times. Because it's exciting for us and also for tennis fans and sport fans around the world."

Denis Shapovalov claimed a spot in the quarter-finals of the Korea Open by seeing off the challenge of Spain's Jaume Munar on Wednesday.

The 2021 Wimbledon semi-finalist needed 109 minutes to claim a 7-5 6-4 win over Munar, assuming control by breaking in the seventh game of the opener before doing likewise early in the second set.

Canadian Shapovalov – who is seeded fourth for the event – had not featured since a dramatic loss to Andrey Rublev at the US Open earlier this month, but produced a consistent display in Seoul, not committing a single double fault during the match.

His reward for the victory is a last-eight tie with Radu Albot, who held his nerve in two tie-breaks to record a 7-6 (7-3) 7-6 (7-3) win over Steve Johnson.

In Wednesday's other match, Japan's Taro Daniel beat Ecuador's Emilio Gomez in straight sets in the duo's round-of-32 tie. 

Top seed Casper Ruud begins his campaign against Nicolas Jarry on Thursday.

Holger Rune saw off a spirited challenge from Tim van Rijthoven to progress to the second round of the Sofia Open on Tuesday, while a pair of seeds suffered surprise exits at the Tel Aviv Open.

Rune – the fifth seed for the tournament in Bulgaria – required two tie-breaks to clinch victory in his first meeting with Van Rijthoven on the ATP Tour, eventually claiming a 7-6 (7-2) 7-6 (8-6) win.

After the match, Rune expressed his relief at avoiding a third set, saying: "I didn't want to go to three sets. If it [had happened], I was going to fight for sure and try to take it in three, but I'm very happy to finish in two."

Meanwhile, eighth seed Oscar Otte beat Dragos Nicolae Madaras 6-3 6-2, and Portugal's Nuno Borges overcame Mirza Basic in three sets to tee up a meeting with defending champion and top seed Jannik Sinner.

In Tel Aviv, seeds Aslan Karatsev and Tallon Griekspoor fell at the first hurdle with three-set reverses to Tomas Martin Etcheverry and Vasek Pospisil, respectively. 

Etcheverry rallied after Karatsev took a second-set tie-break in comprehensive fashion to post a 6-2 6-7 (0-7) 6-4 win, while lucky loser Pospisil stunned Griekspoor for a 4-6 7-6 (7-3) 7-5 triumph.

Fifth seed Botic van de Zandschulp fared better, however, dispatching Joao Sousa 6-2 6-3 after producing a top-class display of serving.

The Dutchman will meet Britain's Liam Broady in the next round after he recorded a straight-sets win over Hamad Medjedovic.

Anett Kontaveit fought back to secure her place in the last 16 of the Tallinn Open in her native Estonia against a spirited Xiyu Wang.

The in-form Wang made life difficult for top seed Kontaveit initially, impressively taking the first set against the world number four.

Kontaveit then appeared to be cruising to victory when she took the second set 6-2 and found herself 5-1 up in the third, but Wang staged something of a revival.

Wang won four games on the trot to stun Kontaveit, only for the 21-year-old to lose her nerve as her opponent broke again and then served out the match 3-6 6-2 7-5, taking her through to face Tereza Martincova.

Beatriz Haddad Maia was also caused problems by a Chinese player, with Xinyu Wang taking the third seed to three sets.

Haddad Maia took the first set fairly comfortably but was blown away in the second before her composure returned in the decider, winning 6-3 1-6 6-4 to also progress to the last 16.

The other seed in action on Tuesday was Jil Teichmann, and she had no such issues seeing off Laura Siegemund 6-4 7-6 (9-7), although the day's most impressive win saw Donna Vekic thrash Maileen Nuudi 6-2 6-0.

At the Parma Ladies Open, second seed Martina Trevisan was stunned 7-5 6-0 by Sara Sorribes Tormo.

It was a bad day for seeds throughout the draw in Italy. Anna Bondar (fifth), Nuria Parrizas Diaz (seventh) and Lucia Bronzetti (eighth) all lost in straight sets.

Third favourite Irina-Camelia Begu did buck that trend, however. She benefited from Viktoriya Tomova retiring, although the Romanian was already a set and 5-1 up.

Yoshihito Nishioka knocked fifth seed Dan Evans out of the Korea Open with a straight-sets victory on Tuesday.

Nishioka moved into the second round in Seoul with a 6-2 7-6 (7-3) defeat of the Briton.

The world number 56 from Japan will face Taro Daniel or Emilio Gomez in round two after winning 70 per cent of points on his first serve and breaking Evans four times.

Jenson Brooksby was forced to go the distance, but delivered a final-set bagel as the eighth seed saw off Wu Tung-lin 7-6 (7-5) 3-6 6-0.

Qualifier Nicolas Jarry will take on top seed Casper Ruud after defeating Ryan Peniston 6-3 7-6 (10-8), while American duo Mackenzie McDonald and Steve Johnson also advanced.

Tseng Chun-hsin progressed with Chris O'Connell retired with an injury after losing the first set before Kwon Soon-woo beat Yunseong Chung in an all-South Korean contest.

Dominic Thiem fought back from a set down to reach the second round of the Tel Aviv Open with victory over Laslo Djere.

The former US Open champion needed two hours and 40 minutes to produce the turnaround, his 5-7 7-6 (7-3) 6-4 win setting up a meeting with another former winner at Flushing Meadows, Marin Cilic.

"I didn't get off to a great start. I got the break in the second set, and then I was a bit lucky I could turn the match around," Thiem said on court after the match.

"The third set was a real grind. I am very grateful to everyone who came tonight. It is really nice to play in Israel."

Roman Safiullin beat Hugo Grenier in the day's other match.

At the Sofia Open, Ilya Ivashka, fresh off a run to the US Open last-16, defeated Mikael Ymer 7-6 (10-8) 4-6 7-5.

There were also wins for Kamil Majchrzak and Alexandar Lazarov.

Maria Sakkari was made to work as she battled her way back from a set down to reach the last 16 of the Parma Ladies Open.

The number one seed lost the first set to Ukrainian qualifier Kateryna Baindl as a shock appeared to be on the cards.

But the two-time grand slam semi-finalist showed great spirit to eventually win 6-7 (7-2) 6-2 6-3 after two hours and 45 minutes on court.

Fourth seed Sloane Stephens also had to respond to first-set disappointment before coming through 3-6 6-3 6-4 against Magdalena Frech.

The only other seed in action on Monday was Ana Bogdan (sixth), and she had no such issues as she lost just three games in a straightforward win over Brazilian Laura Pigossi that took just 73 minutes.

At the Tallinn Open in Estonia, Belinda Bencic was the highest-ranked player on court on Monday, and the second seed breezed through her first-round clash with local favourite Elena Malygina 6-0 6-2.

Karolina Muchova crushed Jessika Ponchet by the same scoreline, while Barbora Krejcikova, seeded seventh, saw off Ajla Tomljanovic 6-1 7-6 (7-3) in straight sets.

However, there was no joy for Madison Keys; the fourth seed going down 6-3 6-2 against Switzerland's Viktorija Golubic.

Marta Kostyuk defeated Bernarda Pera 6-6 4-6 6-3, and Great Britain's Katie Boulter dropped only four games in her 6-3 6-1 demolition of Jaqueline Cristian, setting up a second-round date with Bencic.

Aleksandar Kovacevic marked his ATP Tour main-draw debut by knocking seventh seed Miomir Kecmanovic out of the Korea Open on Monday.

American Kovacevic was only playing in the first round as a lucky loser in Seoul after he was beaten in the final round of qualifying, but he grasped his chance by winning 6-4 6-4.

The 24-year-old served 14 aces and broke the world number 32 three times to set up a second-round meeting with Christopher O'Connell or Tseng Chun-hsin.

Radu Albot got the better of Hiroki Moriya in his first appearance in Seoul, while Jaume Munar progressed when Yosuke Watanuki retired early in their match due to an ankle injury.

Kaichi Uchida came out on top in the final match of the day, consigning Hong Seong-chan to a 6-4 6-2 defeat.

In an all-American final at the San Diego Open, Brandon Nakashima defeated Marcos Giron 6-4 6-4 to capture the first ATP Tour title of his career.

Nakashima, 21, was playing in the third final since arriving on the ATP Tour, having lost the deciders at both the Atlanta Open and the Los Cabos Open as a teenager back in 2021.

Against Giron, the first set lasted just 35 minutes as San Diego native Nakashima converted the only break point opportunity of the frame, while winning 80 per cent (20-of-25) of his service points.

In a spectacularly efficient display, Nakashima hit 15 winners and only one unforced error, while adding six aces with no double faults.

He cooled off slightly in the second set, but it was still more than good enough, posting another 15 winners with five unforced errors and grabbing a break of serve in the opening game.

Giron would finally nab his first break of the contest in a game where he converted on his fourth opportunity, but Nakashima immediately answered to jump ahead 4-2 and serve it out cleanly.

With the win, Nakashima will rise into the top 50 of the world rankings for the first time when it is next updated.

Roger Federer said he felt the pain of Team Europe's first Laver Cup defeat as the World team crashed the Swiss great's farewell party in breathtaking style.

The final event of Federer's playing career veered off the script as he and Rafael Nadal lost in doubles on Friday, before the team collectively succumbed to a 13-8 defeat in London.

Stunning singles wins for Felix Auger-Aliassime and Frances Tiafoe on Sunday, against Novak Djokovic and Stefanos Tsitsipas respectively, followed a doubles thriller that saw Auger-Aliassime and Jack Sock topple Andy Murray and Matteo Berrettini.

After Team Europe won the first four editions of the Laver Cup, this time they had to swallow the bitter pill of defeat, with Federer sorry to sign off on a losing note.

"Of course I'm disappointed," he said. "I was on the team. I almost lost my voice. My hands hurt from clapping.

"So, yes, I am disappointed. We wish the result would be different. I told Andy [Murray] in the locker room, I don't like losing. It's not fun. It just leaves not the best taste, you know. I think once you have been there and taste success, it's just not the same."

He said his goodbye tournament had been a mix of highs and lows.

"This weekend has been all over the place for me," said the 41-year-old Swiss. "I enjoyed it, but it's unfortunate that we couldn't get the win tonight."

Federer denied he has his eyes set on becoming the next Team Europe captain. Incumbent skipper Bjorn Borg and Team World counterpart John McEnroe have indicated next year's match could be the last that they helm, which would create an appealing vacancy.

"No plans there. Bjorn's doing a great job," said Federer. "Who knows, maybe one day, but we don't have any plans so far."

Next year's match takes place in Vancouver, and Federer will certainly have a role of some sort to play, given he is a co-founder of the event.

"I went through all different types of Laver Cups so far: the first one, the winning teams, now this time on the losing team," Federer said. "There was also one where I was hurt last year but seeing it more from the stands and from the fans' perspective, and now deep on the inside with retirement.

"I have enjoyed the Laver Cup in many different ways, and next year again will be totally different. I'm looking forward to it, and I'm sure Vancouver is going to be fantastic."

Asked what he would miss about tennis, Federer said: "Not the losing press conferences, I tell you that. They are the worst."

Andy Murray insists he is not thinking about retirement following Roger Federer's emotional farewell, and declared he would not deserve anything on a similar scale.

The Briton was on hand for the 20-time grand slam champion's final bow at the Laver Cup on Friday, with both men competing as part of Team Europe.

Federer exited with a doubles defeat, partnering old rival Rafael Nadal, while Novak Djokovic also featured, to mark a tournament reunion for the one-time 'Big Four' of men's tennis.

Injuries and slowing form for Murray saw that moniker slip to the 'Big Three' as Murray faded, and the former world number one says he certainly does not feel worthy of the acclaim afforded to the 41-year-old Federer.

"I certainly won't and don't deserve to have a send-off like that," Murray said, after he and Matteo Berrettini lost their doubles clash to Felix Auger-Aliassime and Jack Sock on Sunday.

"Roger did deserve that night. I'm not going to have a farewell match like that. I probably would announce when I'm going to play my last event, but when that is, I don't know."

Murray was adamant he would not be bowing out just yet, however, stating that Federer's retirement had not got him mulling over whether it is time to hang up the racket too.

"I'm really not thinking about that right now," Murray said. "I'm still playing competitive tennis and physically feeling good against top players.

"I just need to start really turning some of these tight losses and close matches into wins. It's as simple as that."

A three-time grand slam winner, Murray is the only men's singles player in history to have two Olympic gold medals, having won titles at London 2012 and Rio 2016 – the latter in the year he also won the ATP Tour Finals as well as Wimbledon for a second time.

Felix Auger-Aliassime and Frances Tiafoe played starring roles as Team World won three matches on the spin on Sunday to claim a first Laver Cup triumph over Team Europe.

Team World went into the final day of action at the O2 Arena in London sitting four points behind their opponents, but they produced a stirring fightback to claim the trophy at the fifth time of asking.

Central to their success was Canadian Auger-Aliassime, who beat Novak Djokovic in singles after successfully teaming up with Jack Sock in the doubles.

Holding an 8-4 lead from Saturday, many expected Team Europe to breeze it from there, but John McEnroe's World team had other ideas and earned a 13-8 victory. 

Up first in the doubles were Auger-Aliassime and Sock, who lost the first set to Team Europe's Andy Murray and Matteo Berrettini.

However, the World duo roared back to deliver three points for their team by claiming a 2-6 6-3 10-8 victory.

Djokovic won two matches for Team Europe on Saturday, yet he was powerless to stop Auger-Aliassime in their singles clash. The 22-year-old Canadian landed a 6-3 7-6 (7-3) over the Wimbledon champion.

That moved Team World 10-8 ahead in the overall contest, setting the stage for a decisive clash between Stefanos Tsitsipas and Frances Tiafoe, with a further three points at stake.

Greek Tsitsipas won the first set, but 24-year-old American Tiafoe stormed back to win an epic tie-break in the second on his way to a 1-6 7-6 (13-11) 10-8 success.

Lorenzo Sonego fended off the challenge of Alexander Bublik to win Sunday's Moselle Open final and earn a return to the top 50 in the world rankings.

In Metz, France, unseeded Italian Sonego swept to a 7-6 (7-3) 6-2 victory in the trophy match, collecting the third ATP title of his career.

He enjoyed a stellar week at the ATP 250 event, following up wins over Gilles Simon and Sebastian Korda with a semi-final victory against second seed Hubert Hurkacz, not dropping a set across his four matches.

Sonego, who reached a career-high ranking of 21st in February, had drifted to 65th in the months since, but the ATP said he would climb back into the top 50 as a result of his title run. The ATP's live rankings on Sunday showed him making a leap of 20 places to number 45.

Bublik, the seventh seed, had reached the final after Stan Wawrinka withdrew from their semi-final due to injury. He kept pace with Sonego on Sunday in a tight first set where serves dominated and neither man could force a break, with success for the Italian in the tie-break breaking the resistance of his Kazakh opponent.

The second set proved to be one-sided as Sonego added the title to his previous triumphs on tour, also extending his winning head-to-head record against Bublik to 4-0.

This indoor hardcourt success followed previous wins on grass in Antalya in 2019 and on clay in Cagliari last year.

Sonego said in an on-court interview: "This is a really emotional moment for me. I'm really happy because I played my best tennis this week. It's been a tough year and I want to enjoy this moment."