World number one Naomi Osaka has split from her coach Sascha Bajin.
The 21-year-old, who won the Australian Open last month and the US Open last year, announced on Monday that their successful partnership had come to an end. No reasons were given.
Osaka tweeted: “Hey everyone, I will no longer be working together with Sascha. I thank him for his work and wish him all the best in the future.”
Osaka enjoyed a remarkable rise up the world rankings after first linking up with Bajin in the 2017 off-season. The Japanese player climbed from 72 to reach the top five during the course of 2018, when she won her first grand slam title, and then hit top spot after her success in Melbourne.
Bajin, who has previously worked as hitting partner for Serena Williams, Caroline Wozniacki, Sloane Stephens and Victoria Azarenka, was named WTA coach of the year in 2018.
He responded to Osaka’s tweet by replying: “Thank you Naomi I wish you nothing but the best as well. What a ride that was. Thank you for letting me be part of this.”
Roger Federer and Bjorn Borg helped to launch the third edition of the Laver Cup, which will see Team Europe take on Team World in Geneva, Switzerland in September.
To publicise the event, the pair went on a boat trip on Lake Geneva, where Federer hit balls at the Jet d’Eau fountain, before meeting hundreds of fans outside Palais Eynard.
The tournament – named after former Australian tennis star Rod Laver – sees the cream of European talent take on their counterparts from the rest of the world, with Borg and John McEnroe the respective captains.
Team Europe are currently unbeaten in Laver Cup tennis, having won the inaugural event in Prague, Czech Republic in 2017 before retaining the title in Chicago, USA a year later.
The 2019 edition will be staged at the Palexpo Convention Centre in Geneva from September 20-22.
Andy Murray has undergone hip resurfacing surgery in London.
The two-time Wimbledon champion was debating having the procedure, which involves putting a metal plate into the joint, in a final bid to prolong his career.
The 31-year-old had previously said ahead of the Australian Open earlier this month that he intended to retire after this year’s Wimbledon.
Murray said on Instagram: “I underwent a hip resurfacing surgery in London yesterday morning…feeling a bit battered and bruised just now but hopefully that will be the end of my hip pain.”
The operation does not guarantee the Scot will be able to make a comeback, but will allow him to live a pain-free life.
Murray was set for a farewell six months after emotionally announcing he was in too much pain to carry on in the build up to the first grand slam of the year.
But after a monumental five-set tussle with Roberto Bautista-Agut, where Murray showed he still has the ability and desire to compete at the top level, he said he would do everything he could to keep playing.
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I underwent a hip resurfacing surgery in London yesterday morning...feeling a bit battered and bruised just now but hopefully that will be the end of my hip pain 😀 I now have a metal hip as you can see in the 2nd photo 👉👉 and I look like I've got a bit of a gut in photo 1😂
Having the surgery, which happened in London on Monday, means he might not be fit to take part at SW19 this summer, where he had planned to say goodbye to the sport.
And if it does not allow him to return to the court, he will have played the last game of his glittering career.
In the lead up to his operation, he was in constant dialogue with American doubles specialist Bob Bryan, who has just returned to the game following the same procedure last summer.
It is the second round of surgery on the troublesome joint, 12 months after the first one, which did not solve the issue.
Murray made a long-awaited comeback at Queen’s last summer but pulled out of Wimbledon and struggled to play matches.
It was hoped an extensive rehabilitation period in Philadelphia, followed by a gruelling pre-season stint in Miami might prove the answer, but Murray was still in significant pain on the court.
Murray will now undergo more rehabilitation to see if he can play again.