Czech Karolina Pliskova stopped upset-maker Varvara Lepchenko in the semi-finals at the Bank of The West Classic in Stanford, California, on Saturday.
Karolina Pliskova reached the Australian Open quarter-finals for the first time on Monday and is keen to prove right those tipping her for Grand Slam success.
Australian Open defending champion Madison Keys raised her game in the Melbourne Park heat to beat Karolina Pliskova 6-3, 6-3 and reach the fourth round.
The day session attendance of 51,048 was some 10,000 short of day six on Friday and even less than last year's corresponding session.
Osaka will take plenty of positives out of the contest
Serena Williams, Bianca Andreescu and Roger Federer have also pulled out of the Grand Slam.
Images from Day 10 of Wimbledon at the All England Lawn Tennis and Croquet Club in London, on Thursday.
World number one Karolina Pliskova needed just 46 minutes to defeat American Jennifer Brady 6-1, 6-0 at Arthur Ashe Stadium and punch her ticket to the quarter-finals at the US Open on Monday.
Karolina Pliskova, a grand slam underachiever, took a big step towards shedding that unwanted label by sweeping past Croatian teenager Ana Konjuh 6-2 6-2 on Wednesday to roar into the semi-finals of the U.S. Open.
The sixth seed burnt the midnight oil in her all-Czech fourth round grudge match against Barbara Strycova, finally clinching a 6-7, 6-3, 6-2 victory at 1.35 a.m. local time on Tuesday morning.
Karolina Pliskova overcame a slow start before beating Garbie Muguruza 4-6, 6-2, 7-6 (6) in her opening match at the WTA Finals. In a contest between two former No. 1-ranked players, the third-seeded Pliskova struggled early adjusting to the nearly 5,000-feet altitude of Guadalajara, Mexico's second largest city on Wednesday.
Karolina Pliskova won her first title of the year on Sunday with a 7-6(2), 6-4 victory over American CoCo Vandeweghe in the final of the Porsche Tennis Grand Prix.
Standing in Czech Karolina Pliskova's way of achieving a first Grand Slam title is top seed Barty who is aiming to lift the Venus Rosewater Dish for the first time herself.
Karolina Pliskova and Petra Kvitova won their opening singles matches to give Czech Republic a commanding 2-0 lead in their Fed Cup semi-final against Germany in Stuttgart on Saturday.
While 40 have tried only nine times have both Williams sisters been beaten by the same player at the same tournament and that list reads like a Grand Slam Hall of Fame with names that include; Steffi Graf, Martina Hingis, Lindsay Davenport, Justine Henin and Kim Clijsters, who like Pliskova, pulled the double off at the US Open.
World number three Karolina Pliskova overcame a stern test to reach the semi-finals of the BNP Paribas Open on Wednesday after edging French Open champion Garbine Muguruza 7-6(2), 7-6(5) at Indian Wells.
Simona Halep trailed by a set and 5-1 against Elina Svitolina but somehow dug herself out of a hole before storming to victory to set up a semi-final against Karolina Pliskova.
Karolina Pliskova suffered a narrow US Open defeat at the hands of Angelique Kerber on Saturday, but the Czech 10th seed also proved her mettle as one of the most dangerous attacking players in women's tennis.
Karolina Pliskova stormed to her second WTA title of the year, beating Caroline Wozniacki 6-3, 6-4 in the Qatar Open in Doha on Saturday.
Japan's Kei Nishikori overcame Daniil Medvedev in the Brisbane International final on Sunday for his first ATP title in nearly three years and the 12th of his career.
Czech Karolina Pliskova crushed Frenchwoman Alize Cornet 6-0, 6-3 with a barrage of winners to win the Brisbane International title on Saturday and signal her intent for this month's Australian Open.
Karolina Pliskova gave herself the perfect pre-Wimbledon tonic by lifting the Aegon International title on the grass at Eastbourne.
Pliskova, a finalist at last year's US Open who reached the semi-finals at Indian Wells last week, relied on her booming groundstrokes and strong returning to dispatch her American opponent in 59 minutes.
Leolia Jeanjean, playing in her maiden Grand Slam, is a former big hope of French tennis who ended up living on minimum wage after a knee injury suffered when she was 15 kept her off the courts for two years.
Czech second seed Karolina Pliskova avenged her Australian Open quarter-final loss to Mirjana Lucic-Baroni with a 6-3, 6-4 win over the 26th-seeded Croatian to secure a spot in the Miami Open semi-finals on Tuesday.
Karolina Pliskova warmed up for Wimbledon in the best possible fashion on Saturday by powering past Angelique Kerber 6-1, 6-4 to win the Eastbourne title.
Former world number one Karolina Pliskova is confident that splitting with coach David Kotyza will not be a hindrance as she attempts to go it alone over the home stretch of the season, leading up to the WTA Finals in Singapore next month.
Karolina Pliskova showed the steel of a world number one as she fought off a match point to claim a riveting 3-6, 7-5, 6-4 comeback win over Zhang Shuai in the US Open third round.
Barty said the key to the match was extending rallies on the warm day in Southern Florida.
Simona Halep claimed the Italian Open in Rome on Monday
World number two and top seed Caroline Wozniacki, runner-up at the south coast event last year, cruised into the semi-finals with a 6-4, 6-3 win over Australia's Ashleigh Barty.
Maria Sharapova's US Open preparations took a major blow with the Russian World No 2 forced to withdraw from next week's WTA event in Toronto.
Carlos Alcaraz will be backed to extend his winning run at the Grand Slams to 16 matches following triumphant French Open and Wimbledon campaigns.
Pliskova was down 5-1 against Williams in the final set before the seventh seed produced a fight-back for the ages to claim a 6-4, 4-6, 7-5 quarter-final win over the American great.
Earlier in the day, Karolina Pliskova became the first woman to advance when the big-hitting Czech curbed her attacking instincts to beat compatriot Petra Kvitova 6-3, 6-4 and record her second win against a single loss in White Group play.
For the second straight year Serena Williams saw her bid for a seventh U.S. Open title halted in the semi-finals with a 6-2 7-6(5) loss to Karolina Pliskova on Thursday that also ended her long reign as world number one.
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.
Former world number one Karolina Pliskova utilised her big serve to full effect to ease to a 6-4, 6-4 victory over home favourite and U.S. Open champion Naomi Osaka in the Pan Pacific Open final in Tokyo on Sunday.
Bertens, the first Dutchwoman to reach the last 16 since Michaella Krajicek, sister of former men's champion Richard, did so in 2007, followed up her win over Venus Williams in the third round with a display of power and poise.
Pliskova will be guaranteed toppling Germany's Angelique Kerber if she prevails against Halep who would need to go on and take the title to seize the top ranking.