Meanwhile, in the WTA event, third seeded-pair of Sania Mirza and Yaroslava Shvedova lost 3-6, 6-7(7) to second seeds Yung-Jan Chan and Martina Hingis in the semi-finals of the $3,076,495 red clay event.
Elise Mertens and Aryna Sabalenka beat Czech pair Barbora Krejcikova and Katerina Siniakova 6-2, 6-3 to win the Australian Open women's doubles title on Friday for their second Grand Slam trophy together.
Could French Open champion Jelena Ostapenko serve up another shock at Wimbledon this year? Or will world number one Angelique Kerber get her season back on track at Wimbledon?
Sania is returning to the circuit after a two-year break but injured her leg in practice.
Defending champion Novak Djokovic tops the draw while new world number one Ash Barty is top seed in the women's singles.
Tennis great Billie Jean King says the financial fallout from the coronavirus shutdown has exposed the unfairness of the sport and that it is important for the top players to lead the cause for change. The tennis season was suspended in March due to the COVID-19 pandemic and the shutdown will continue at least until mid-July, depriving lower-level players, who depend solely on tournament winnings, of the chance to earn a living.
The 30-year-old is the first German woman to win Wimbledon since Steffi Graf in 1996.
Russia's Daniil Medvedev remarkably reached his ninth final of the season as he defeated Stefanos Tsitsipas 7-6(5), 7-5 at the Shanghai Masters on Saturday.
Former world number one Serena Williams will not be seeded at this year's French Open, according to the organisers of the May 27-June 10 claycourt Grand Slam.
World number one Ash Barty delighted the Memorial Drive crowd by breezing through to the Adelaide International semi-finals with a comfortable 6-3, 6-4 victory over Sofia Kenin on Friday.
Former world number one Karolina Pliskova utilised her big serve to full effect to ease to a 6-4, 6-4 victory over home favourite and U.S. Open champion Naomi Osaka in the Pan Pacific Open final in Tokyo on Sunday.
The 26-year old Stephens and Altidore, 29, announced their engagement on Monday with joint posts on social media.
Coco Gauff, who shared an emotional on-court interview with Osaka after falling to her at the 2019 US Open, echoed Stephens's comments.
Wimbledon organisers will announce the cancellation of the grasscourt Grand Slam this week due to the coronavirus pandemic, German Tennis Federation (DTB) vice-president Dirk Hordorff told Sky Sports. All England Lawn Tennis Club (AELTC) officials earlier said the June 29-July 12 event would not be played behind closed doors and postponement was not without significant risk and difficulty.
'I feel when I sort of close this chapter of my life... an Olympic medal is something that I would have loved to win. So I want to give myself another shot at it.'
Petra Kvitova won her third title of the year as she fought back from a set down to beat Romanian Mihaela Buzarnescu 4-6, 6-2, 6-3 in the Prague Open final on Saturday.
Sania and Mattek-Sands too had two opportunities to break their rivals but the American fluffed a volley from the net before left-handed Desirae served extremely well to eventually hold.
'I've accomplished a lot this past year and I feel I can do even more, now I actually believe I can do more after all of this success so I am going to keep striving and hopefully win many more Grand Slams. I have been thinking about playing the Olympics for a couple of years, I think it is a very special event'
Halep, the beaten finalist in the French Open last week, is the latest top player to pull out from the event after Czech world number three Karolina Pliskova opted to rest her injured elbow ahead of Wimbledon.
Serena Williams and Naomi Osaka have long moved on from their tempestuous 2018 US Open title match but that will do nothing to dampen the suspense ahead of their blockbuster Australian Open semi-final on Thursday.
The US Open has said it regrets that French player Alize Cornet was given a warning for removing her shirt during a match following complaints that the decision was sexist.
Nadal had a solid start, but the 35-year-old struggled physically towards the end of the contest
Italy's Matteo Berrettini overcame second seed Roberto Bautista Agut 7-6(9), 6-4 to win his first title at the Swiss Open in Gstaad on Sunday.
Francesca Schiavone became the first Italian woman and the oldest first-time Grand Slam winner since 1969 when she won the French Open in 2010
Organisers in talks with governing bodies amid rescheduling reports.
That is Murray's 46th ATP title.
Melbourne on Friday completed 28 days since the last reported locally-acquired case of novel coronavirus infection.
'I knew I was going to come back but my first thought was, 'Oh my god I'm never going to play tennis again.'
It is Mladenovic's third major doubles title
Form guide for American Serena Williams ahead of Thursday's US Open semi-final clash against Latvia's Anastasija Sevastova:
The Indian Wells tennis tournament was set to start on Tuesday, attracts the game's top players from both the men's and women's sides and drew a record 475,000 fans over its two-week run last year. It was cancelled over concerns about the spread of a coronavirus in Southern California.
Halep withdraws from Western & Southern Open with injury.
The 24-year-old Tunisian is the only player from the continent in the women's draw and only the second Arabic woman ever to crack the top 100 in the WTA rankings.
Kenin, who was seeded 14th last year, came back from a set down to beat Spain's twice Grand Slam champion Garbine Muguruza in the Australian Open final.
Pole says she feels much better prepared to handle the pressure of her latest career milestone.
Rafael Nadal has criticised Wimbledon's unique seedings formula, which could hinder his chances of a third title when the tournament starts on Monday.
A summary of Sunday's action at the US Open.
Sania Mirza earned herself a shot at another WTA title by reaching the summit clash of the WTA Wuhan Open with Czech partner Barbora Strycova, in Wuhan, on Friday.
At one stage Yuki was a break up, serving for the opening set but lost his serve and eventually the set. After drawing parity, Yuki twice lost his serve to fall behind 0-3 in the decisive set and never recovered.
The postponement of the Tokyo Olympics has disappointed athletes around the world but, if the coronavirus pandemic eases over the next few months, it could turn out to be a blessing for the tennis world.
