Earlier on Wednesday, Czech Karolina Pliskova was forced to withdraw from the tournament due to a viral illness.
Asked which thoughts, the world number two from Constanta said: "The only one, very tough thought is one set, 3-0 up, that I couldn't take that game.
The Dane could be the dangerwoman at this year's French Open, according to former champion Mats Wilander.
Melbourne final feels 'bit unreal' for Japan's Osaka
Images from the second day at the US Open, the final Grand Slam tournament of the year.
Dominika Cibulkova marched into her second career Grand Slam semi-final with an impressive 6-3, 6-0 demolition of 11th seed Simona Halep at the Australian Open.
Stefanos Tsitsipas pulled off one of the biggest wins of his short but remarkable career by beating Rafael Nadal 6-4 2-6 6-3 on Spanish soil on Saturday to book his place in the Madrid Open final against world number one Novak Djokovic.
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.
Five months before the Olympics opening ceremony in Tokyo, health authorities around the world are scrambling to contain outbreaks of the flu-like virus which has infected about 80,000 and killed more than 2,700 people, the vast majority in China.
France's Marion Bartoli and Russia's Svetlana Kuznetsova suffered shock first-round exits from the Rogers Cup as the two seeded players were eliminated on Monday by a pair of gritty qualifiers.
Images from Day 1 of the French Open matches played at Roland Garros on Sunday
That is Murray's 46th ATP title.
French Open champion Stanislas Wawrinka has moved up five places to number four in the official ATP world rankings released on Monday.
The exodus of seeded players has been so spectacular that only one of the top 10 remains -- number seven Karolina Pliskova.
Williams said the number 24 is becoming an obsession for the media who talk of little else
World number one Novak Djokovic blasted past qualifier Alexei Popyrin 6-4, 6-2 to reach the second round of the Japan Open Tennis Championships in Tokyo.
Cilic's booming serve lacked its usual accuracy and Germany's Kohlschreiber was able to control long rallies, pushing the towering Croatian around the court with pinpoint groundstrokes en route to a quick victory.
Maria Sharapova withdrew from the Rogers Cup with a sore left arm on Thursday, putting the five-time grand slam champion's US Open participation in doubt.
Victoria Azarenka displayed the kind of form that could lead her to a hat-trick of Australian Open titles later this month by brushing aside German fourth seed Angelique Kerber 6-3, 6-1 in the Brisbane International final on Saturday.
Serena Williams powered into the fourth round of the Australian Open on Saturday with a 6-2, 6-1 demolition of Dayana Yastremska then consoled the Ukrainian teenager after leaving her in tears.
Images from Day 4 of the French Open, at Roland Garros, in Paris.
Spanish racing driver Carmen Jorda has suggested women could be better suited to Formula E than Formula One because the all-electric cars are less physically challenging.
Wimbledon champion Marion Bartoli shocked the tennis world on Wednesday by announcing her retirement from the sport at the age of 28.
As the first day's play got under way, she posted a video clip on Instagram of her pounding backhands on a clay court despite being absent from the tour since winning the Australian Open in January as she is expecting her first child.
Summary of sports events and persons who made news on Tuesday
The top-seeded Serb, who had not dropped a set in four matches since the round of 16 at the Australian Open in January, looked out-of-sorts throughout the 98-minute contest.
Williams had little trouble against the 31-year-old German although the gusty breezes at Auckland Tennis Centre played havoc with her ball toss, especially when she was serving for the match at 5-3 in the second set.
Serena Williams must navigate a heavily American quarter of the draw including sister Venus to complete a calendar sweep of the four Grand Slams, while two sensational quarter-finals loom on the men's side after Thursday's U.S. Open draw.
Raonic advances, Sock ousted in Rogers Cup
World number one Simona Halep pulled out of next week's WTA Finals due to a lower back injury.
The unseeded Bencic, who also beat former world number ones Caroline Wozniacki and Ana Ivanovic in Toronto, wore a look of disbelief after the 18-year-old's forehand winner whizzed past Williams to seal the match.
ATP says 'no evidence' against Harrison's racist remarks
Nadal produced a rich vein of form as he thrashed Greek teenager Stefanos Tsitsipas in straight sets to clinch his fourth Canadian Masters 1000 title at the Rogers Cup
In the women's draw, defending champion Garbine Muguruza will play 2010 French Open winner Francesca Schiavone
Top seed Dominic Thiem was knocked out the Rio Open in the first round on Tuesday, going down 6-3, 6-3 to Laslo Djere.
Angelique Kerber's recent revival faces its toughest test in the shape of Maria Sharapova when the only two former Australian Open champions in the women's draw clash in round three on Saturday. A cool front broke the grip
Romania's Simona Halep overcame Czech Karolina Pliskova 6-4, 7-6(4) in the final of the Dubai Championships on Saturday to claim her 10th WTA singles title.
Andy Murray took a step closer to a first title in arguably the toughest year of his playing career, grinding out a 3-6, 7-5 ,6-2 win over Ugo Humbert on Saturday to reach the final of the European Open in Antwerp.
Penpix of the top women's contenders at the 2017 French Open:
PHOTOS from day seven of the Wimbledon championships at the All England Lawn Tennis in London on Tuesday.