Organisers confirmed Osaka had withdrawn due to a left ankle injury and her opponent Sara Sorribes Tormo will now face lucky loser Nuria Parrizas Diaz.
World number one Victoria Azarenka moved into the Stuttgart indoor tournament quarter-finals on Thursday as sixth seed Caroline Wozniacki was upset by Angelique Kerber.
Wimbledon's Centre Court crowd is famed for its lowest common denominator sense of humour but they were fully justified in giggling their way through Victoria Azarenka's third-round win over Daniela Hantuchova on Friday.
The top two seeds advanced to the Madrid Open second round on Sunday when Victoria Azarenka dispatched Svetlana Kuznetsova 7-6, 6-4 and Maria Sharapova crushed Irina-Camelia Begu 6-0, 6-2.
Carlos Alcaraz demolished Mattia Bellucci to banish memories of last year's shock early exit at the US Open on Wednesday.
IMAGES from the action from the Australian Open at Melbourne Park on Thursday.
World No. 1 Victoria Azarenka has denied claims that she deliberately manipulated the rules book when she took a medical time out with the score at 5-4 in the second set of her Australian Open semi-final win over teenager Sloane Stephens.
Belarussian Victoria Azarenka produced some sparkling tennis to defeat an out-of-sorts world number two Kim Clijsters in the quarter-finals of the Sony Ericsson Open on Wednesday.
Maria Sharapova blocked out a 28-minute horror show to beat Jelena Jankovic and Victoria Azarenka eased past Maria Kirilenko to set up a heavyweight French Open semi-final in Paris on Wednesday.
Japan's Kei Nishikori and Victoria Azarenka of Belarus continued their Australian Open preparations by swiftly marching through to the quarter finals of the Brisbane International on Wednesday.
Azarenka punished her Russian opponent's weak serve to wrap up the final in 80 minutes in relentless humidity under a searing sun in the early afternoon encounter on the Key Biscayne hardcourt.
Former world number one Victoria Azarenka took advantage of an error-prone display by Serena Williams to win her second BNP Paribas Open title with a 6-4, 6-4 victory in the final at Indian Wells in California.
Former world number one Victoria Azarenka was forced out of the Aegon Classic in Birmingham with a foot injury on Wednesday shortly after defending champion Ana Ivanovic suffered a shock defeat.
Top seed Victoria Azarenka charged ominously into the fourth round of the Indian Wells WTA tournament on Sunday while third-seeded Petra Kvitova made an unexpected early exit.
The tournament initiative was to launch on Wednesday - Ukraine Independence Day - with the exhibition event at Louis Armstrong Stadium
Czech reigning champion Marketa Vondrousova, seeded sixth and in the same quarter of the draw as Swiatek, will open against Spain's Jessica Bouzas Maneiro.
Images from the Australian Open women's final played in Melbourne on Saturday.
Two-time Grand Slam champion Victoria Azarenka will no longer bite her tongue or try to fit into any media-trained 'image' as she makes her way on the tennis tour.
Victoria Azarenka is looking forward to a special Wimbledon after arriving with an'extra member' in tow.
World No. 1 Victoria Azarenka suffered a blow to her French Open preparations when she was forced to pull out of the Italian Open with a right shoulder injury on Wednesday, but an aching Roger Federer gingerly advanced to the third round.
Two-times Grand Slam champion Naomi Osaka advanced to the US Open final for the second time in her career with a 7-6(1), 3-6, 6-3 victory over big-hitting Jennifer Brady.
Victoria Azarenka was anything but amused when Kim Clijsters accused her of benefiting from "illegal coaching" from her players' box during her nail-biting victory over Britain's Heather Watson in the Wimbledon third round on Friday.
World number one Victoria Azarenka won her first title in more than six months when she beat Russian Maria Sharapova 6-3, 6-1 in the final of the China Open on Sunday.
Images from the fourth day of the French Open on Wednesday.
Victoria Azarenka and Serena Williams will square off for the Madrid Open title after the current and former World No. 1's swept into the final with a minimum of fuss on Saturday.
World No 1 Victoria Azarenka of Belarus charged into the final of the Indian Wells WTA tournament with a 6-4, 6-3 victory over Germany's Angelique Kerber on Friday.
Top seed Victoria Azarenka stormed into the last four of the Indian Wells WTA tournament with a ruthless 6-0, 6-2 demolition of Agnieszka Radwanska, improving her record this year to 21-0.
Victoria Azarenka is relishing her return to Melbourne Park as double defending champion and while Serena Williams is a hot favourite to deny her a hat-trick of titles, the Belarusian says she will not focus solely on the challenge from the World No 1.
World number one Victoria Azarenka pulled out of the Pan Pacific Open citing chronic fatigue while Maria Sharapova was stunned by Samantha Stosur as the event lost its top two seeds on Thursday.
World No 3 Victoria Azarenka lost her temper on the way to a surprise 1-6, 6-2, 6-3 defeat by unseeded Russian Ekaterina Makerova in the Madrid Open second round on Wednesday.
Serena Williams roared into a her seventh Wimbledon singles final with a 6-3, 7-6 victory over Victoria Azarenka on Thursday. She will face Poland's Agnieszka Radwanska in Saturday's final.
Kim Clijsters was out-hit and out-shrieked on Thursday as Victoria Azarenka bundled the former world number one out of the Eastbourne championships in the quarter-finals. The Belgian, sharpening her grasscourt game for next week's Wimbledon championships, lost 7-6, 6-4 at the south-coast venue which has witnessed several shocks this week.
Outgoing World No. 1 Victoria Azarenka showed that being second best was not an option for her as she outclassed Serena Williams 7-6, 2-6, 6-3 to win the Qatar Open on Sunday.
World number one Victoria Azarenka was knocked out in the fourth round of the French Open when she slumped to a 6-2, 7-6 defeat by Slovakian 15th seed Dominika Cibulkova on Sunday.
Victoria Azarenka, the 19-year-old from Belarus, thrashed injury-hampered world number one Serena Williams 6-3m 6-1 to win the Sony Ericsson Open on Saturday. The victory, the first top-tier triumph for Azarenka, stopped the American claiming a record sixth title at Key Biscayne.
World number one Victoria Azarenka stretched her unbeaten run to 24 matches this year while Venus Williams ousted Wimbledon champion Petra Kvitova at the Sony Ericsson Open in Miami on Friday.
Victoria Azarenka became the first Belarusian to win a Grand Slam singles title when she claimed the Australian Open title with a 6-3, 6-0 victory over Russia's Maria Sharapova on Saturday.
After two years in the spotlight as Australian Open champion, Victoria Azarenka was reduced to a spectator against Agnieszka Radwanska as she crashed out of the quarter-finals in a bout of self-flagellation on Wednesday.
The unseeded Indo-Canadian pair defeated their fancied rivals 6-3, 3-6, 10-5 in a round of 16 tie of the ATP Masters 1000 event.
Grand Slam winners Samantha Stosur and Petra Kvitova strolled into the second round of the Dubai championships with straight sets wins on Tuesday after Australian Open champion Victoria Azarenka withdrew due to a foot injury.