Nick Kyrgios needs to improve his fitness to have a chance of winning Grand Slams, former world number one Jim Courier said on Wednesday.
Images from Day 3 of the Australian Open in Melbourne on Wednesday.
An emotional Agnieszka Radwanska claimed her maiden WTA Finals title with a roller-coaster 6-2, 4-6, 6-3 victory over Czech Petra Kvitova in an absorbing encounter at a packed Singapore Indoor Stadium on Sunday.
Florida-born Collins battled hard in the first set on a stifling day at Rod Laver Arena but ended up steamrolled 7-6(2), 6-0 by eighth seed Kvitova.
Check out the most shocking upsets at this year's Wimbledon.
Images from Sunday's action at the Australian Open, in Melbourne.
Images from the matches played at the All England Lawn Tennis and Croquet Club, in Wimbledon, London, on Monday.
Williams, a record 23-times Grand Slam champion, will be returning to the All England Club for the first time since giving birth to her daughter last September.
Naomi Osaka beat Jennifer Brady to win her second Australian Open title and fourth Grand Slam crown, extending her win streak to 21 matches.
Eight-time Wimbledon champion Roger Federer, who turns 40 this year, takes on Frenchman Adrian Mannarino in round one.
Rediff.com presents the early surprises at the year's first Grand Slam.
Petra Kvitova, who missed part of the 2017 season after a home invasion left her with a badly cut left hand, continues her remarkable comeback when she faces American Venus Williams.
Maria Sharapova's mix of grit and power were enough to see off American teenager Sofia Kenin 7-5, 6-2 in the third round of the US Open on Friday.
Kvitova to decide on participation on Friday
Top seed Roger Federer reached the Halle Open semi-finals on Friday, beating defending champion Florian Mayer 6-3, 6-4 and edging closer to a ninth title at the Wimbledon tune-up event.
World number two Rafael Nadal dropped a set at the Barcelona Open for the first time in four years before advancing to the last 16, beating Argentine Leonardo Mayer 6-7(7), 6-4, 6-2 on Wednesday.
Eugenie Bouchard was beaten by Petra Kvitova in the Wimbledon final but she will be walking away with more sponsorship stake because 'sex sells'.
Pole says she feels much better prepared to handle the pressure of her latest career milestone.
Maria Sharapova's fellow players described her as inspirational and praised her fighting spirit following the Russian's announcement of her retirement from tennis at the age of 32 on Wednesday. The injury-plagued Sharapova, renowned for her never-say-die approach to the sport despite regularly being hampered by shoulder problems, won five Grand Slam titles.
Petra Kvitova, Rafael Nadal, Andy Murray and Jo-Wilfried Tsonga battled their way into the third round of the French Open on Thursday.
Playing in his first competitive singles match on the ATP Tour since August 5, the 20-times Grand Slam champion showed no signs of rust in his second round win against Lithuanian qualifier Ricardas Berankis.
Summary of sports events and persons who made news on Friday
German Sabine Lisicki sent another seismic shockwave through Wimbledon on Monday when she sent five-times champion Serena Williams packing in fourth round, while Li Na and Petra Kvitova advanced to the quarter-finals.
The Czech Republic further established themselves as the dominant force in women's team tennis as they claimed a 3-2 comeback win against hosts France to capture their fifth Fed Cup title in six years on Sunday, and 10th overall. Karolina Pliskova and Barbora Strycova downed Kristina Mladenovic and Caroline Garcia 7-5 7-5 in the doubles to hand the visitors the decisive point. The nation won five titles as Czechoslovakia in the 1970s and 80s before dominating the women's team competition in recent years.
PHOTOS from the Wimbledon Championships matches played at the All England Lawn Tennis and Croquet Club, London, on Saturday
With the unique format at the WTA Finals, it is all about how you finish rather than how you start as new champion Agnieszka Radwanska proved perfectly in Singapore this week.
Naomi Osaka faces Zheng before possible meeting with Coco Gauff
Aryna Sabalenka expressed more concern over the vaccine than her quarterfinal opponent No 1 Ash Barty
German Sabine Lisicki sent another seismic shockwave through Wimbledon on Monday when she sent five-times champion Serena Williams packing in fourth round, while Li Na and Petra Kvitova advanced to the quarter-finals.
Maria Sharapova's contentious and captivating US Open run came to an end on Sunday when Latvia's Anastasija Sevastova beat her 5-7, 6-4, 6-2 to reach the Flushing Meadows quarter-finals.
Factbox on Japan's Naomi Osaka, who beat Victoria Azarenka of Belarus 1-6, 6-3, 6-3 to win the US Open title on Saturday.
Gauff vows to be more aggressive in Osaka showdown
Jelena Jankovic teamed up with men's world number one Djokovic at his tennis complex in Serbia's capital and beat the duo of Serbia's Davis Cup captain Nenad Zimonjic and 19-year-old prospect Olga Danilovic 7-6 in a mixed doubles contest.
IMAGES from the matches played on Day 2 of the Wimbledon Lawn Tennis Championships at All England Lawn Tennis and Croquet Club on Tuesday.
With no standout favourite in the women's field, it could provide an ideal stage for American Serena Williams to finally end her quest for an elusive 24th Grand Slam title.
Novak Djokovic posted black screenshots on his Twitter and Instagram pages with the message "Black Lives Matter", and was joined by Federer and Nadal, the other members of the "Big Three" of men's tennis.
The Czech Republic cruised to a 2-0 lead after the opening singles of the Fed Cup final against Serbia on Saturday, putting them well on course to successfully defend their title.
With the whiff of a fifth Wimbledon singles title in the air, grass court predator Serena Williams cut down defending champion Petra Kvitova to move ominously into the semi-finals on Tuesday.
Novak Djokovic overcame a battling Marin Cilic 6-4, 3-6, 6-3 to reach his sixth Cincinnati Masters final on Saturday while Roger Federer enjoyed a less-taxing route to the title match after his semi-final opponent David Goffin retired with a shoulder injury.
Serena Williams marked her first European appearance of the season with victory on the Madrid Open's striking blue clay courts on Monday, but her sister Venus crashed out in the second round.