Serena Williams lauded her doubles partner Ons Jabeur after they advanced to the semi-finals of the Eastbourne International on Wednesday. 

Playing in her first tournament since retiring from the opening round of Wimbledon injured last year, Williams acknowledged she was particularly reliant on Jabeur during their 6-2 6-4 success over Shuko Aoyama and Chan Hao-ching. 

The 23-time grand slam singles champion opted to only play doubles on the south coast as she gears up for a return to the All England Club. 

"I think we played together much better," said Williams. "Although I thought we played really good together [against Maria Bouzkova and Sara Sorribes Tormo on Tuesday] too. 

"But Ons really held me up. She was really playing so good. I was looking at her and was like, 'Wow, this is great.' It's good." 

Williams and Jabeur will take on Aleksandra Krunic and Magda Linette for a place in the final. 

Jabeur playfully asked the 40-year-old if she would like to play together at the US Open, to which the former world number one responded: "Sign me up!" 

The Tunisian added: "I'm getting used to this. It was really great to play here and I didn't know we are in the semi-finals. It's super fast, but it's great for us." 

Rafael Nadal proved his fitness on his return to action ahead of Wimbledon with a routine straight-sets victory over Stan Wawrinka in Wednesday's exhibition match.

The 37-year-old has won the Australian Open and French Open titles already this year, but his bid for a grand slam sweep was halted by a troublesome foot problem.

Nadal triumphed at Roland Garros despite needing pain-killing injections before every match, leaving his fitness in doubt for Wimbledon next week.

However, the 22-time grand slam winner confirmed last week he was planning on taking part in the third major of the year after spending time training on grass in Mallorca.

And in his first match since beating Casper Ruud in the French Open final two-and-a-half weeks ago, Nadal eased past Wawrinka at the Hurlingham Club in London.

The Spaniard raced into a five-game lead in the opener and, despite losing his break of serve in the seventh game, saw out a straightforward opening set.

Playing in front of around 1,300 spectators, Nadal was pushed a little harder in the second set but still came through relatively unscathed to win 6-2 6-3 in a little over an hour.

Wawrinka, who has been handed a wild card for Wimbledon, expects Nadal to be right in the mix for a third crown at All England Club, 12 years on from his most recent triumph.

"After that I have a lot to work on," he joked. "But it's OK, it's against Rafa. We are used to losing against him. It's normal!.

"I don't know how he's feeling – it looks like normal Rafa. He has been saying he is feeling better and if he is playing he is ready to play his best and to win.

"I think Rafa any time he enters a grand slam is going to be one of the favourites, if not the favourite. 

"He won the first two slams of the year without too many matches before those grand slams so he got a lot of confidence so of course he is part of the favourites."

As well as twice winning Wimbledon, Nadal has also reached the semi-finals in his past two appearances in 2018 and 2019.

After getting a first grass-court appearance in three years under his belt, he is hoping for more happy memories during his time in the English capital.

"I have spent some fantastic moments here in London," he said. "Playing of course at the World Tour Finals a lot of times but of course playing at Wimbledon since 2003. 

"It was always a big goal and a dream for me to achieve important things here at Wimbledon and I was able to make that happen for the first time in 2008. 

"Since that moment, I always come back with the same passion and I always feel very welcomed by the crowd here."
 
Nadal will be number two seed when the draw takes place on Friday, with long-time rival Novak Djokovic the top seed in the absence of Daniil Medvedev.

The calendar Grand Slam remains a "realistic goal" for Rafael Nadal, but he will not lose sleep over the holy grail in tennis as he prepares for Wimbledon.

That is the message from Carlos Moya, who is a former world number one and has coached Nadal since 2016.

Nadal made an incredible comeback at the start of 2022 from a foot injury that has plagued much of his career, winning the Australian Open before claiming another French Open crown.

The 36-year-old surpassed Novak Djokovic and Roger Federer in the men's all-time grand slam wins list with victory in Melbourne, with Roland Garros success representing his 22nd major title.

Nadal has repeatedly played down the prospect of winning all four men's majors in a calendar year, with Rod Laver the last to do so all the way back in 1969.

While the calendar Grand Slam remains on the cards, Moya warned Nadal is only halfway to completing the illustrious haul as the Spaniard heads to Wimbledon.

"It is a realistic goal, right now he is the only one that can achieve it this year," Moya told Eurosport Spain.

"It is the first time in his career that he is in a position to achieve it, but we see it as something far away, it is only halfway.

"At the moment he doesn't lose sleep, as a team few things keep us up at night and this is not one of them.

"We have to go little by little, it is not something that we talk about, it is not a primary objective, although we are not going to give up on it."

Nadal revealed in Paris that he intended to have radiofrequency injections to boost his hopes of competing at the All England Club, and he has undergone two courses of said treatment.

Wimbledon starts on Monday, a tournament that Nadal has won in 2008 and 2010, but he has not played there since reaching the semi-finals in 2019.

Nadal ramped up his preparations with a week training on grass in Mallorca before playing an invitation event at Hurlingham Club this week, where he faced Stan Wawrinka on Wednesday.

"We had a pretty good week of training in Mallorca, although the grass there is a bit different from London, maybe that's why it's taking a little bit for him to adapt to the grass in England," Moya added.

"Right now, the important thing is that he spends time on the court and that his foot is fine, little by little he will pick up the pace, we also hope that the draw will help, especially in the first games.

"At Wimbledon there can always be more surprises. Regardless of the player you get in those first rounds, what is dangerous is the type of opponent you get, you have to be careful with the sluggers.

"Now he has two important exhibition matches, my confidence in him for Wimbledon remains the highest. He is perfectly suited to grass."

Andy Murray has hinted he could compete alongside Emma Raducanu in the mixed doubles at Wimbledon, depending on how they fare in the singles.

Two-time Wimbledon champion Murray returns to SW19 later this month for only the third time since his last victory in 2016.

A quarter-final exit in 2017 was followed by two absent years and the 2020 event was cancelled due to the Covid-19 pandemic prior to last year's third-round exit.

Meanwhile, Raducanu has struggled to find consistency and fitness in grand slams since her astonishing US Open success last year, being knocked out in the second round of both the Australian Open and French Open.

Both Britons will be hoping for better showings on home soil in 2022 but, if they suffer early elimination from the singles, Murray has revealed they could form a partnership for the mixed doubles.

"I'd love to play with her. I love watching her play. I think she's brilliant. She's going to be amazing for the sport. Not just in the UK, but especially in the UK," he told GQ.

"Actually, we had spoken last year about potentially playing mixed doubles at Wimbledon, and then both of us ended up doing well in the singles so we ended up not doing it. 

"But yeah, I would love to play with her."

However, while he spoke to his compatriot about a possible partnership last year, he has not touched base with the world number 11 ahead of this year's tournament.

"I've not spoken to her about it, but it would depend on the singles," he added.

"Obviously, we both will be prioritising that and hopefully having a good run there. And if that's the case, then that will be our priority.

"But yeah, if we both didn't do well, then maybe. At some stage in the future I would certainly love to. I think it'd be great fun."

Murray is unseeded for the men's singles, while Raducanu is seeded 10th for the women's event.

Serena Williams doubted whether she would return to elite tennis as she stepped up her Wimbledon preparations by playing doubles with Ons Jabeur at the Eastbourne International.

Williams teamed up with Jabeur on Tuesday to record a thrilling win over Marie Bouzkova and Sara Sorribes Tormo in her first competitive outing since last June, when she was forced to retire from her first-round Wimbledon clash with Aliaksandra Sasnovich through injury.

Having been granted a wildcard entry to the year's third grand slam, which begins next week, Williams is bidding for her first major title since winning 2017's Australian Open.

But speaking after her successful return to the court, Williams admitted her comeback had been far from certain.

"Did I ever doubt I would return? Absolutely, for sure. I would be dishonest if I said it wasn't and now my body feels great," she said.

"I definitely felt good out there and I was talking with Ons in the first set saying 'we're not playing bad' because they were just playing really good in that first set.

"But obviously winning, getting more balls and playing a little bit more made us feel a lot better. It definitely felt reassuring. It has been clicking in practice and now it seems like it is clicking. It is doubles but it still means a lot to both of us to be in it."

Williams and Jabeur will face Shuko Aoyama and Chan Hao-Ching in Eastbourne's doubles quarter-finals after posting an impressive 2-6 6-3 13-11 victory in their first outing.

With Williams now ranked 1,204th in the world and aged 40, speculation has abounded as to whether her SW19 appearance will mark the beginning of a farewell tour for the seven-time Wimbledon champion.

However, Williams is not rushing to make any further decisions about her future in the game.

"You know what, I am literally taking it one day at a time. I really took my time with my hamstring injury so I am not making a ton of decisions after this," she added.

"I did a lot of non-training in the beginning obviously and after I couldn't play New York [2021's US Open] I went cold turkey of not working out.

"It felt good, but I always try to stay semi-fit because you never know when you are going to play Wimbledon.

"I love tennis and I love playing otherwise I wouldn't be here, but I also love what I do off the court."

Katie Boulter stunned last year's Wimbledon runner-up Karolina Pliskova at the Eastbourne International as the Briton secured the first top-10 scalp of her career.

Despite making a strong start, fourth seed Pliskova faltered and lost 1-6 6-4 6-4 to the world number 127 in the pair's last-32 match.

Boulter said: "I'm super-proud of myself today. I went out there and didn't feel great on court, and I worked so hard to battle and fight, and against a player like that it means so much to me, coming through that."

There was another major shock win for a British player later in the day as Jodie Burrage knocked out top seed Paula Badosa, the world number 169 triumphing 6-4 6-3 against a player who will be seeded fourth at Wimbledon.

Defending champion Jelena Ostapenko beat Ajla Tomljanovic 6-4 6-4 and two-time Wimbledon winner Petra Kvitova saw off Donna Vekic 6-1 7-6 (7-1), while Beatriz Haddad Maia's strong form on grass continued with a 6-4 3-6 6-3 victory over Estonian veteran Kaia Kanepi.

Brazilian left-hander Haddad Maia is coming off the back of title wins in Nottingham and Birmingham and stretched her winning run on grass to 11 matches.

There were also wins in Eastbourne for Camila Giorgi, Madison Keys and Barbora Krejcikova, but Greek third seed Maria Sakkari bowed out, losing 3-6 7-5 6-4 to Ukrainian Anhelina Kalinina.

At the Bad Homburg Open in Germany, the 2019 Wimbledon champion Simona Halep scrambled for a 4-6 6-3 6-4 win against Katerina Siniakova, and sixth seed Amanda Anisimova came from a set down to see off Alison van Uytvanck in a third-set tie-break.

Bianca Andreescu saw off Martina Trevisan 6-3 6-1 and Angelique Kerber also won in straight sets, while top seed and recent French Open semi-finalist Daria Kasatkina reached the quarter-finals with a 6-1 3-6 6-1 win over Germany's Jule Niemeier.

Kasatkina will be absent from Wimbledon due to the ban on Russian players.

Serena Williams made a thrilling return to the WTA Tour as she and Ons Jabeur teamed up to win a nail-biting doubles contest at the Eastbourne International.

Czech player Marie Bouzkova and Spaniard Sara Sorribes Tormo provided stiff competition but eventually succumbed 2-6 6-3 13-11 as Williams grew in belief.

This was the first competitive match for 40-year-old Williams since abandoning her Wimbledon first-round clash against Aliaksandra Sasnovich last June, due to an ankle injury.

It was also her first doubles main-draw match on grass since she and sister Venus won the 2016 Wimbledon title, so she was understandably rusty in the early stages, while world number three Jabeur's nervousness about playing with Williams, which she spoke of after the match, was also evident.

Williams will be on a wildcard at Wimbledon next week, due to her ranking plummeting, as she chases what would be a record-equalling 24th grand slam singles title.

Her game looked sketchy early on, with a smash into the net handing over the second game, before she then blazed a volley over the baseline to concede the early break.

Her own serve was broken as Sorribes Tormo and Bouzkova snatched a 4-1 double-break lead in the opener, which they soon wrapped up.

Williams lost her footing on the grass midway through the second set, slipping over, but she was soon back up, with the contest becoming increasingly competitive.

Jabeur and Williams forged a 4-3 lead in the second set and then broke to force the match tie-break.

All-out assault from Williams brought up a first match point, but the American then rattled a backhand long after Jabeur failed to put away a volley at the net early in the rally.

Another match point slipped away as Jabeur netted from another great chance, but a drop shot from the Tunisian brought up a third, and this time Sorribes Tormo volleyed wide to herald a scream of delight from Williams.

"Oh my god, it was so fun to play with Ons," said Williams. "Our opponents played amazing. They played so well in that first set, they were jamming.

"We were just trying to stay in there after the first set, it was good though.

"I caught some fire behind me, so that's good; I needed that."

Defending men's champion Novak Djokovic and women's world number one Iga Swiatek head the seedings for Wimbledon, which starts on Monday.

The championships issued its lists of seeds on Tuesday, with Russian and Belarusian players absent from the line-up after they were excluded from the tournament because of the ongoing invasion of Ukraine.

It means Russia's men's world number one Daniil Medvedev is absent, while Germany's second-ranked Alexander Zverev also misses out, in his case because of an ankle injury.

With Wimbledon sticking to the ATP and WTA rankings, that means world number three Djokovic automatically moves up to the top seeding as he chases a seventh title at the All England Club, and a 21st grand slam win of his career.

Two-time Wimbledon winner Rafael Nadal is the second seed, with the Spaniard having already won the Australian Open and French Open titles this year to nudge two majors ahead of Djokovic and Roger Federer on the all-time men's list. Federer, still battling his way back from knee surgery, will not play Wimbledon this year and turns 41 in August.

Norway's Casper Ruud, fresh from reaching the French Open final, is the third seed, with Greece's Stefanos Tsitsipas fourth. Spanish teenager Carlos Alcaraz is fifth, while Great Britain's Cameron Norrie, ninth on the list, receives his first top-10 seeding at Wimbledon.

Norrie is bumped up from his world ranking of number 12, given world number eight Andrey Rublev, another Russian, is prevented from competing.

The women's reigning champion Ash Barty has retired since capturing the title last July, so her successor as the dominant player on the WTA Tour, Swiatek, assumes the top seeding.

Swiatek has reeled off 35 consecutive match wins, dominating on hardcourts and clay, but she has less of a grass pedigree, albeit the 21-year-old Pole is a former junior Wimbledon champion.

Last year saw Swiatek lose in the fourth round to Tunisian Ons Jabeur, who is the third seed this time. Estonia's Anett Kontaveit is the second seed, with Wimbledon no longer making any allowances for grass-court prowess, as it used to when devising its seeding lists.

Britain's Emma Raducanu, like Norrie, is a Wimbledon top-10 seed for the first time. The shock US Open champion is seeded 10th, one ahead of the American teenager Coco Gauff.

The format means there will be dangerous unseeded players in the draw, notably Nick Kyrgios and two-time champion Andy Murray in the men's singles.

Serena Williams, the seven-time women's champion, is entered on a wildcard and is also unseeded. Williams, 40, has not played singles since abandoning her first-round match at Wimbledon last year due to injury, but entered this week's doubles event at Eastbourne, partnering Jabeur.

Men's top 10: 1. Novak Djokovic, 2. Rafael Nadal, 3. Casper Ruud, 4. Stefanos Tsitsipas, 5. Carlos Alcaraz, 6. Felix Auger-Aliassime, 7. Hubert Hurkacz, 8. Matteo Berrettini, 9. Cameron Norrie, 10. Jannik Sinner

Women's top 10: 1. Iga Swiatek, 2. Anett Kontaveit, 3. Ons Jabeur, 4. Paula Badosa, 5. Maria Sakkari, 6. Karolina Pliskova, 7. Danielle Collins, 8. Jessica Pegula, 9. Garbine Muguruza, 10. Emma Raducanu

Nick Kyrgios has become the first star to sign up to Naomi Osaka's sports agency. 

Australian Kyrgios was described by four-time grand slam winner Osaka as possessing an "unmatched style", while her business partner Stuart Duguid said the controversial ATP Tour player was "absolutely the icon" for young tennis fans. 

Osaka and Duguid, her long-time agent, announced the Evolve agency in May as both left IMG. 

Kyrgios, the extravagantly gifted world number 45, has won six career titles on the ATP Tour and has a world ranking high of number 13, with many considering him an unfulfilled talent. 

The 27-year-old won the Australian Open doubles title alongside countryman Thanasi Kokkinakis in January, and in singles he has reached consecutive semi-finals in his past three tournaments in Houston, Stuttgart and Halle. 

Osaka told Boardroom.TV that Kyrgios "embodies the types of athletes we want to work with". 

"He's got an unmatched style, passion and personality that is unlike any other in the sport," Osaka added. 

Duguid said: "Nick is the most talented and entertaining tennis player on the tour, bar none. His energy is infectious. And love or hate him, you definitely can't keep your eyes off him. For Gen Z and younger, he is absolutely the icon." 

While Kyrgios is planning to play at Wimbledon next week, Osaka will be absent, with the former world number one troubled by an Achilles injury. 

Andy Murray is optimistic he will be fit for Wimbledon as the two-time champion races against time to overcome an abdominal injury. 

The 35-year-old British veteran has been a long-time home-crowd favourite at the London grand slam and reached the third round last year. 

Injuries have marred Murray's recent seasons, and he has defied most expectations by remaining on tour, recently climbing back into the world's top 50 for the first time in four years. 

The Scot slipped back to 51st this week after missing the Queen's Club Championships due to his injury setback. 

He said: "The injury is healing but still not perfect. My goal is to get to the start line in a good place physically and give myself the best chance to do well." 

Murray, quoted widely by UK media on Monday, said: "There have been positives and negatives this week. Positives are I've been able to practise, but there are certain shots I've not able to practise." 

Recently reunited with coach Ivan Lendl, who guided him to Wimbledon glory in 2013 and 2016, plus the US Open title in 2012, Murray believes he can recover full fitness in time for the championships, which start next Monday. 

"I've been practising for the past three or four days and have been practising well," he said. "But unfortunately in matches you can't just not hit certain shots. In the next couple of days hopefully I will get the chance to test that, and hopefully it will be fine." 

The former world number one produced a strong early result in the grass-court season, reaching the Stuttgart Open final before falling to Matteo Berrettini. 

Murray experienced discomfort during that showpiece match in Germany, twice requiring medical timeouts as he battled the pain against the Italian. 

Serena Williams will find it "super difficult" to challenge for an eighth Wimbledon singles title when she returns to SW19 next week, according to Karolina Pliskova.

Williams announced her participation at Wimbledon after receiving a wildcard last week, having been absent since a first-round retirement against Aliaksandra Sasnovich at The All England Club last year.

The American great will team up with Ons Jabeur to play doubles at Eastbourne over the coming days as the 40-year-old prepares for her Wimbledon return.

But Pliskova, who lost last year's Wimbledon final to Ashleigh Barty, says Williams could struggle to match her previous exploits after coming back from a long-term leg injury.

"I don't know how long it has been since she has played. Has it been a year? It is a long time, and she is not the youngest any more, so I suppose the body also takes some time to get back into shape," Pliskova said ahead of her own campaign at Eastbourne.

"Playing matches at tournaments is still very different to just practising and from what I understand, she is not playing [singles] here, she is just playing doubles.

"I think it will be difficult, super difficult for her, no matter what kind of player she is because this is a thing where you still need some time.

"But of course, she is an amazing player, she achieved so much and still a number of players will be super scared to play her. This is her advantage but let's see the level. I cannot really say."

Pliskova has won two of her three grand slam meetings with Williams, eliminating her at the quarter-final stage at the 2019 Australian Open and in the final four at the 2016 US Open.

While the world number seven may have cast doubt upon Williams' chances, Paula Badosa is not keen on the prospect of facing the 23-time major champion on the grass.

"I think it surprised everyone but it's very good to have her back. It really amazes me how she has all this hunger for the game," the world number four said.

"It is a great inspiration. It is nice to have her back and I hope she can be back for much more time because I think she does very good for tennis.

"But the other side, of course I don't want to play against her! I hope the draw goes for another player because no one wants to play against Serena and [even] less on grass. Let's pray for that!"

Ons Jabeur hailed Serena Williams as a "legend" as she expressed her nervousness and excitement to pair with the American great at the Eastbourne International.

Williams has not played a competitive match since defeat to Aliaksandra Sasnovich in the first round of last year's Wimbledon and is now ranked at 1,204 in the world.

The 40-year-old, who is one grand slam title shy of matching Margaret Court's long-standing record of 24, will feature at the third grand slam of the year, which starts next Monday.

Eastbourne will serve as preparation for the upcoming grass-court major after Williams received a wild card in the doubles draw alongside Jabeur.

Jabeur has been in fine form in 2022, winning the Berlin Open and Madrid Open and rising to world number three, though she remains nervous to play with Williams at Eastbourne.

"I wanted to tell everyone, but obviously I couldn't," Jabeur told the WTA Tour in an interview. "I told my family, but even my close friends, I didn't tell anyone.

"Excited, really lucky that she picked me. I'm pretty glad that I can share the court with her. I always watched Serena playing and always supported her.

"She's such a legend and such an example for our sport. I'm really nervous to play. I hope the match will be great and we'll have great matches.

"I don't know why she picked me to be honest. Maybe she watched Madrid. I met her a few times outside the court and she was always nice.

"I remember exchanging pins with her in Rio. I respect her so much. I've been waiting for this moment for a long time. I had to take my time in Berlin, but now it's Eastbourne. I cannot wait for this moment."

Williams and Jabeur have been drawn against unseeded duo Marie Bouzkova and Sara Sorribes Tormo in the first round on Tuesday.

Matteo Berrettini ramped up his Wimbledon preparations by securing his seventh ATP Tour title and fourth on grass as he won again at the Queen's Club Championships.

The Italian returned from injury in emphatic fashion at the Stuttgart Open, defeating Andy Murray in the final, before heading to Queen's ahead of the start of the third major of the year.

Berrettini had little trouble negotiating his way through to Sunday's showpiece, dropping just one set throughout the tournament to set up a meeting with Filip Krajinovic.

And despite having to battle in the first set, Berrettini triumphed 7-5 6-4 to retain the title he won last year.

The 26-year-old had an early break cancelled out by Krajinovic but got a crucial second break to take the first set.

A tentative opening followed in the second set, yet Berrettini's patience paid off when he broke in the fifth game and he was able to serve out the victory.

That signified Berrettini's ninth straight win, all on grass, after a three-month injury lay-off.

Berrettini is the first player in the Open Era to win titles in each of his first two appearances at Queen's, and is the eighth repeat champion at the tournament – the other seven players to have achieved that feat are all former world number ones.

"I arrived to Stuttgart, and I wasn't feeling great, I wasn't hitting the ball the way I want it that way I used to do, and I was like 'guys I think it's going be tough' and then it went pretty well," he said after the win," Berrettini said.

"I mean I guess I'm Italian, I'm always complaining!"

Berrettini has also advanced to the final in all four of his past grass-court events, with his only defeat coming against Novak Djokovic at Wimbledon last year.

The world number 10 will now look to go one better this time around at The All England Club.

Zizou Bergs earned a wildcard for Wimbledon and a grand slam main draw debut by beating Jack Sock in the Ilkley Trophy final on Sunday.

Named after Zinedine Zidane – the France, Juventus and Real Madrid football great who goes by the nickname 'Zizou' – Belgian Bergs has established his sporting career in tennis.

Bergs, 23, is ranked a lowly 207th by the ATP and had to come through qualifying to play in the Ilkley event, a Challenger Tour tournament in Yorkshire.

Former world number eight Sock stood in his way in the final, but Bergs secured a 7-6 (9-7) 2-6 7-6 (8-6) victory over the American.

His father Koen Bergs wrote on Twitter: "Yesssssss. The tournament director announced during the ceremony the official reward of the WC for @Wimbledon main draw. History is made."

His triumphant son added on Instagram: "WIMBLEDON MAIN DRAW WILDCARD!! Whuuuutttt"

Bergs completes the list of men's singles wildcards, featuring alongside five British players plus Dutchman Tim van Rijthoven and Swiss three-time grand slam winner Stan Wawrinka.

Wimbledon begins on June 27 at the All England Club in south-west London.

Naomi Osaka pulled out of Wimbledon on Saturday as tournament officials said the former world number one was suffering with a leg injury.

The announcement came in the wake of Osaka revealing she was considering skipping the grand slam in any case, as she suspected it may feel "like an exhibition".

The All England Club's decision to ban Russian and Belarusian players from competing has resulted in the WTA and ATP stripping Wimbledon of all ranking points.

Osaka, who is a four-time grand slam champion, suggested after her first-round exit at the French Open that she was unsure about whether to commit to the grass-court major.

Confirmation of her absence from the event, which starts on June 27, came from Wimbledon as her name was added to a list of withdrawals.

The Japanese 24-year-old has only played Wimbledon's main draw three times in her career, twice reaching the third round. She has yet to go further but has won the Australian Open twice and the US Open on two occasions. Recently she complained of a "stubborn" Achilles problem.

Osaka was joined on the withdrawal list by Eugenie Bouchard, the 28-year-old Canadian who was runner-up to Petra Kvitova at the 2014 Wimbledon championships.

Wimbledon listed Bouchard as absent due to a shoulder problem; however, that told only part of the story.

She is battling her way back up the rankings after injury and disappointing results and said she could not risk using a special entry dispensation on a tournament that will carry no points.

Bouchard wrote on Instagram: "I have decided to withdraw from Wimbledon due to the WTA's decision to not award ranking points at this year's championships.

"Due to my shoulder surgery, I get a limited number of protected ranking [PR] entries. As much as I love Wimbledon and skipping it makes me sad, using a PR entry at a tournament with no ranking points doesn't make sense. I must choose wisely and use my PR at tournaments that will help me get back to where I want to be."

She said she would use her protected ranking grand slam entries for the next US Open and Australian Open.