The Australian Open will lose one of its giant killers when South Korean Chung Hyeon meets American Tennys Sandgren in an unlikely quarter-final showdown at the Rod Laver Arena on Wednesday.
Defending US Open champion Rafael Nadal retired from his semi-final against Argentine third seed Juan Martin del Potro on Friday with right knee issues. The world number one was trailing 7-6(3), 6-2 when he decided to call it a night.
Serena, a six-times champion in New York who is seeded 17th, will start her campaign against Polish world number 60 Magda Linette and could face Venus in the third round before a possible fourth-round showdown with Romanian top seed Halep.
World No 3 Andy Murray remained on course for a first career clay court title.
Summary of sports events and persons who made news on Sunday
With rain having washed out Wednesday's play, Federer along with champion Rafael Nadal and top seed Novak Djokovic all face playing back-to-back matches on Thursday if they want to reach the quarter-finals.
Images from the action on Day 2 at the Australian Open.
Serbia's Novak Djokovic, who beat Switzerland's Roger Federer to win his 16th Grand Slam title on Sunday:
The Indian Davis Cup team was staring at defeat at the zonal level for the first time in five years following shock defeats of Ramkumar Ramanathan and Sumit Nagal on the opening day of the second round tie against China, in Tianjin, on Friday.
If Stanislas Wawrinka's hot streak extends another four days, the Swiss might be unstoppable in his quest for a second French Open title, three-time former champion Mats Wilander said.
The 22-year-old Australian breezed past the 15-times Grand Slam champion in about one hour and 20 minutes.
Rafael Nadal survived a difficult start to see off Chung Hyeon of South Korea in straight sets and reach the semi-finals of the Barcelona Open for a 10th time on Friday.
Bopanna being the highest-ranked doubles player in the country is automatic choice for the doubles rubber.
IMAGES from Day 3 of the US Open in New York on Wednesday.
Former world number one Andy Murray withdrew from the Brisbane International with a hip problem on Tuesday, further putting in doubt the Briton's prospects of being fit in time for the Australian Open later this month.
Ferrer, 37, announced earlier in the year he would end his 19-year career at the Madrid Open and prolonged his time on court by a day by beating Roberto Bautista Agut on Tuesday, but was easily overpowered by world number four Zverev.
Images from matches played on Day 4 at the US Open at the Flushing Meadows in New York on Thursday.
Djokovic is clubbed with Federer, Juan Martin Del Potro, David Goffin and Alexander Zverev.
Andy Murray will need to be at his streetwise best to beat Stan Wawrinka in the French Open semi-finals on Friday, three-times former Roland Garros champion Mats Wilander told Reuters.
Rafael Nadal gave a much improved performance to advance into the quarter-finals of the Barcelona Open on Thursday, dispatching Spanish compatriot and crowd favourite David Ferrer 6-3, 6-3.
Kirsten Flipkens led India Aces to a tight one-point win over defending champions Singapore Slammers with her decisive victory over Kiki Bertens in the do-or-die women's singles clash in IPTL, in Tokyo on Saturday.
Del Potro eyeing another Rafael-Roger double in New York
Andy Murray is within one match of securing his place in the ATP World Tour Finals after easing past local favourite Julien Benneteau 6-3, 6-4 on Wednesday to advance to the third round of the Paris Masters.
The charismatic 18-year-old Canadian has infatuated the New York crowds with his skill and on court panache that has made him the youngest man to make it into the fourth round of the US Open since American Michael Chang in 1989.
Roger Federer made a comfortable start to his quest for a 100th title, despatching Fabio Fognini in straight sets to ease into the quarter-finals at the Paris Masters on Thursday.
The top women's seeds continued to be scattered at Wimbledon on Wednesday, with Caroline Wozniacki's exit meaning five of the top eight were gone before the end of the third day.
De Minaur, 20, went the entire tournament without facing a break point, and the Australian fittingly clinched victory with a deft serve-and-volley backhand winner.
Andre Agassi says that he and Novak Djokovic need to learn to trust each other if their partnership is to deliver results for the world number four.
Rafael Nadal and Roger Federer will set aside their long-time rivalry when they play for Europe against the rest of the world in the inaugural Laver Cup tournament which starts on Friday.
Stanislas Wawrinka breezed into the fourth round of the BNP Paribas Open on Monday and saw another seed removed from his path to the final when lucky loser Yoshihito Nishioka of Japan turned his match against Tomas Berdych upside down.
Former world number one Mats Wilander says only two things can keep Roger Federer from advancing - injury and distraction.
An angry Tennys Sandgren slammed journalists for "demonising" him with "sensationalist" reporting on his social media links to right-wing activists but said the controversy had not affected him during his Australian Open quarter-final loss to South Korea's Chung Hyeon.
World number one Rafael Nadal recorded his 20th straight win on clay as he began his quest for a sixth title in Madrid, defeating Frenchman Gael Monfils 6-3, 6-1.
Swiss tennis maestro Roger Federer stepped up his bid for a record ninth Halle grasscourt title with a straight sets victory over Germany's Jan-Lennard Struff in the opening round on Wednesday.
Greek teenager Stefanos Tsitsipas secured the biggest win of his career when he sent Wimbledon champion Novak Djokovic packing in the third round of the Rogers Cup with a stunning 6-3, 6-7(5), 6-3 win on Thursday.
Making a stupendous start to the fresh season, Ramkumar Ramanathan scalped higher-ranked Roberto Carballes Baena to set up a second round clash with tournament-favourite Marin Cilic at the inaugural Tata Open Maharashtra, in Pune.
It was his first tournament win since January and has left the world number four confident of mounting a challenge at Wimbledon, where he has been drawn against Slovakia's Martin Klizan in the first round.
Novak Djokovic will have coach Andre Agassi in his corner for as long as required at Wimbledon as the Serb tries to claim back one of his lost Grand Slam titles.
British player Dan Evans has been provisionally suspended after admitting on Friday that he had failed a doping test for cocaine at the Barcelona Open in April.
Nadal, playing his first match since losing to Roger Federer in the Wimbledon semi-finals, fell behind 5-2 in the tiebreak before roaring back to prevail in his first career meeting with world number 53 Evans.