Three women in the field have topped the world rankings this season, incumbent Simona Halep and her predecessors Garbine Muguruza and Karolina Pliskova, but none of them have been able to kick on and cement their place as the tour's dominant player.
Nadal avenged his defeat to the 20-year-old Greek at the same stage of the Madrid Open a week ago
M C Mary Kom stormed into the quarter-finals of the women's boxing flyweight category (51 kg) at the Olympics, scoring a comfortable 19-14 victory over Poland's Karolina Michalczuk at the ExCel Arena on Sunday.
Six-time champion M C Mary Kom made sure of an unprecedented eighth medal at the women's World Boxing Championships after advancing to the semi-finals of the 51kg category, in Ulan-Ude, Russia, on Thursday.
Elina Svitolina stayed calm in the face of adversity to secure a surprise 6-3 7-5 win over German world number one Angelique Kerber as the Ukrainian advanced to the China Open quarter-finals in Beijing on Thursday.
Singapore Slammers beat Indian Aces 27-21 in what turned out to be a dress rehearsal for the final of the International Premier Tennis League (IPTL), which the two teams will be vying for $1 million prize money.
Images from Day 2 at the US Open played at Flushing Meadows in New York on Tuesday
Caroline Wozniacki overcame a mid-match wobble and withstood a barrage of big hitting to get her WTA Finals title defence back on track with a 7-5, 3-6, 6-2 victory over Petra Kvitova at the Singapore Indoor Stadium.
Stefanos Tsitsipas' YouTube channel is experiencing a surge in subscribers after he reached the Australian Open semi-finals and the Greek youngster will hope to add to his highlight reel when he faces world number two Rafael Nadal on Thursday.
Novak Djokovic is aware of Kei Nishikori's battling qualities having lost twice to the Japanese in 17 career meetings.
Images from all the action on Day 9 at the Australian Open in Melbourne on Wednesday
Romanian fifth seed Simona Halep advanced to the third round of the U.S. Open with a 6-3 6-4 win over Lucie Safarova on Thursday in the first full match played under a closed roof at Arthur Ashe Stadium. The $150 million retractable roof was installed ahead of this year's tournament and guaranteed there would be at least some action on a muggy and overcast Day Four at the year's final grand slam.
Sharapova's quarter-final defeat by Williams at the 2016 Australian Open was the last competitive match the Russian played for 15 months after she received a doping ban while American Williams was on a maternity break for most of 2017.
World number one Angelique Kerber got the birthday gift she wanted Wednesday by making the Australian Open third round, but she had to work hard against fellow German Carina Witthoeft.
Venus Williams has pulled out of the upcoming Brisbane International after suffering a 'setback' in training
World No 1s Andy Murray and Angelique Kerber have been named top seeds for the first major of the season, Australian Open, which will commences on January 16.
Briton Andy Murray and Germany's Angelique Kerber were named ITF World Champions on Tuesday, capping stellar years for the men's and women's world number ones. Murray, whose brother Jamie was named doubles World Champion along with Brazil's Bruno Soares, won Wimbledon in July before becoming the first player to win two Olympic singles gold medals when he retained his crown in Rio de Janeiro in August.
Wellness expert Roopashree Sharma answers your health queries.
Form guide for American Serena Williams ahead of Thursday's US Open semi-final clash against Latvia's Anastasija Sevastova:
Spain's Carla Suarez Navarro came back from a dreadful first set to defeat Venus Williams.
The tournament, with eight players in both the men's and women's draw, will resemble regular tennis as much as possible.
Images from Day 4 of the French Open, at Roland Garros, in Paris.
Serena Williams sounded a warning for her fellow Australian Open contenders with a sleek win
Wawrinka splits with long-time coach Norman
The Serbian had to save two set points in the first set before finding his groove to reach his 10th title clash in Rome and remain on course to win his 36th ATP Masters 1000 crown and overtake Rafael Nadal on the all-time list.
Petra Kvitova completed her preparations for an assault on a third Grand Slam title in triumphant style on Friday by downing fellow Czech Karolina Pliskova 7-6, 7-6 to win the Sydney International title.
Spain's Rafael Nadal was at his dominant best against Pablo Carreno Busta on Saturday, brushing aside his compatriot 6-1, 6-2, 6-4 to move into the fourth round at the Australian Open. Images from Day 6 of the Australian Open at Melbourne Park on Saturday.
In an exciting back-and-forth rubber lasting three hours 45 minutes, Siniakova held off the 19-year-old Fed Cup debutante to give the Czechs a 3-0 win in the final against a United States team who were the defending champions but were missing their top players.
Key facts and records of American Serena Williams and Canada's Bianca Andreescu
'I knew I was the underdog and I was just enjoying it'
The decibel readings were not needed for Victoria Azarenka on Monday as the groans from the crowd at the Brisbane International almost drowned out her trademark shrieks.
It will be the second consecutive final for Paes and Angel, who also reached the final at Montrrey Challenger last week, ending runners-up to Jeevan Nedunchezhiyan and Marcelo Arevalo.
Images from Day 8 of the Australian Open in Melbourne on Monday.
Venus Williams will take on compatriot Sloane Stephens in one semi-final before her fellow Americans Madison Keys battles it out with CoCo Vandeweghe in the other in all-American semi-final in the women's singles at the US Open.
US Open champion Naomi Osaka continued to flourish in front of her home crowd at the Pan Pacific Open in Tokyo, as she comfortably dispatched Barbora Strycova 6-3, 6-4 on Friday to reach the semi-finals.
Maria Sharapova will be back in the US Open spotlight on Wednesday hoping she can come up with a winning encore to her electrifying first round victory over second seed Simona Halep.
Britain's Johanna Konta faces an anxious 24-hour wait before discovering whether she will make her debut at the WTA Finals in Singapore.
Sania Mirza and Martina Hingis are gunning for their third title of the season as they take on Czech Republic combination of Andrea Hlavackova and Lucie Hradeck in the Women's Doubles final at Australian Open. The Indo-Swiss pair had a dream time in 2015 when they won 9 titles which included the Wimbledon, US Open and the year-ending WTA finals. That form has carried in 2016 as they eye a successive third Grand Slam. The World No.1 duo had defeated Julia Goerges and Karolina Pliskova 6-1, 6-0 to continue their dominance in Women's Doubles events.
World number eight Williams, who captured the first of her six US Open titles two years before her 17-year-old opponent was born, spent the first half of the match trying to find her rhythm but when she did she was off to the races.
