Spain's Carla Suarez Navarro came back from a dreadful first set to defeat Venus Williams.
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.
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.
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.
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.
World number one Naomi Osaka will "probably" defend her US Open title, even if it means defying her doctor's orders.
The United States survived a fright from little Latvia on Saturday before winning 3-2 in a Fed Cup qualifier as Serena Williams suffered her first career singles loss in the team event. Switzerland, Spain, Belgium, Slovakia, Germany, Russia and Belarus also moved through to the inaugural 12-nation showdown in Budapest.
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.
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.
Svitolina arrived in Singapore out of form yet determined to "silence the haters", who she said believed she did not deserve to be in the tournament, and the Ukrainian has played brilliantly to win all three pool matches and her semi-final.
IMAGES from Day 7 at Wimbledon on Monday
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.
Images from Day 4 of the Australian Open in Melbourne on Thursday
IMAGES from Day 6 of the French Open, at Roland Garros, on Friday.
World Number one Simona Halep and Japan's Naomi Osaka are among the players nominated for the Women's Tennis Association (WTA) Player of the Year award.
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?
Naomi Osaka trying to move on from 'bittersweet' maiden Grand Slam title
Check out the best looks from the Vanity Fair party.
IMAGES from the matches played on Day 3 of the Wimbledon Lawn Tennis Championships at All England Lawn Tennis and Croquet Club on Wednesday
A summary of Day Three's matches at the Wimbledon Championships.
A summary of Friday's play at Wimbledon.
Take a look at the celebs who were present on Day 4 of the Lakme Fashion Week Summer/Resort 2016!
Venus Williams produced a vintage display full of guts and determination to grind out a 7-5, 6-7(3), 7-5 victory over Jelena Ostapenko at the WTA Finals on Tuesday to set up a White Group decider for a semi-finals berth against Garbine Muguruza.
Earlier on Wednesday, Czech Karolina Pliskova was forced to withdraw from the tournament due to a viral illness.
Images from Day 6 of Wimbledon at the All England Lawn Tennis and Croquet Club in London, on Saturday.
Osaka will bid for her second Grand Slam title in succession against twice Wimbledon champion Kvitova on Saturday, having claimed her maiden major in New York last year by upsetting Serena Williams in the final.
Melbourne final feels 'bit unreal' for Japan's Osaka
Poland's Agnieszka Radwanska stayed patient in the face of a barrage of big serving to advance to the last four of the WTA Finals for the third time in a row with a 7-5, 6-3 victory over Karolina Pliskova on Friday.
Meet the best-dressed women at the Venice Film Festival.
Images from Day 2 of the Australian Open in Melbourne on Tuesday
Big-serving Czech Karolina Pliskova cruised into the semi-finals of the BNP Paribas Open with a 6-3, 6-2 victory over Russian teenager Darya Kasatkina on Thursday.
Sania Mirza entered the women's doubles semi-finals and set up a high-intensity clash against Leander Paes in the mixed doubles after both the Indians made the quarter-finals with their respective partners in the Australian Open in Melbourne.
Novak Djokovic and Rafael Nadal won on Saturday to set up an Italian Open final meeting
Novak Djokovic, Rafael Nadal and Johanna Konta progressed to the Italian Open semi-finals on Friday, but Roger Federer and Naomi Osaka were forced to withdraw with injury problems. World number one Osaka pulled out of her quarter-final meeting with Kiki Bertens due to a thumb injury before 37-year-old Federer announced his withdrawal because of a problem to his right leg.
Halep's near-flawless display at the All England Club marked a spectacular return to form after her world ranking dropped from first to seventh between mid-January and July.
Summary of sports events and persons who made news on Friday
Perry said she had been in touch with the local organising team on a daily basis as they prepare to start the tournament on October 19, pending government approval and confirmation that players will be able to travel.
The exodus of seeded players has been so spectacular that only one of the top 10 remains -- number seven Karolina Pliskova.
Images from day three of the Wimbledon Tennis Championships at the All England Club in London, on Wednesday.