Osaka battled on gamely before retiring while trailing Kaia Kanepi 7-6(4), 3-0.
The first stop on Serena Williams' farewell tour came to a quick end as she fell to Belinda Bencic in second-round action at the Canadian Open on Wednesday a day after announcing her forthcoming retirement from tennis.
Australian Nick Kyrgios produced another extraordinary performance to demolish compatriot Alex de Minaur 6-2, 6-3 at the Canadian Masters on Thursday, a day after stunning world number one Daniil Medvedev.
* Swiatek started playing tennis in an attempt to emulate her older sister, who competed briefly on the junior circuit.
Images from Day 6 of the 2023 Australian Open at Melbourne Park on Saturday.
A summary of Wednesday's action at the US Open on Day 3.
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.
IMAGES from Day 9 of the French Open at Roland Garros in Paris on Monday.
Poland's red-hot world number one Iga Swiatek did not drop a game in her Saturday singles match against Romania's Andreea Prisacariu, sending Poland through to November's Billie Jean King Cup finals in decisive fashion.
A round-up of tennis matches played on Tuesday.
Ash Barty ended Australia's 44-year wait for a home winner at the Australian Open when the world number one staved off a fightback from American Danielle Collins to complete a 6-3, 7-6(2) win.
Barty is primed to become the first local since Chris O'Neil in 1978 to win the Australian Open.
Argentina has assured India that it will resolve the issue of restrictions on import of Indian drugs to the Latin American country.
Roberta Vinci beat her opponent and the rain to storm into the quarter-finals of the US Open on Monday just before a thunderstorm forced play to be suspended.
Factbox on Iga Swiatek, who defeated Sofia Kenin to win her maiden Grand Slam title at the French Open on Saturday.
Serena Williams stayed on track for an eighth Wimbledon title as she fought back to beat Italian Camila Giorgi 3-6, 6-3, 6-4 in a fiercely contested quarter-final.
He will skip the two Masters series events in Shanghai and Paris next month.
Bayern Munich eased past title rivals Borussia Dortmund 3-1 on Saturday to secure their 10th consecutive Bundesliga crown in front of a sold-out home crowd and with three games to spare, while Paris St Germain secured a record-equalling 10th French top flight title after stuttering to a 1-1 home draw by 10-man RC Lens.
Tennis matches at the Ariake Tennis Park will begin from 3pm local time (0600 GMT) from Thursday, governing body International Tennis Federation said after requests from players who had struggled in the stifling weather.
IMAGES from Australian Open matches played at Melbourne Park on Friday
Photos from Day 1 of the Australian Open matches played at Melbourne Park on Monday
Serena Williams overpowered German Carina Witthoeft 6-2, 6-2 to set up a third-round clash with big sister Venus at the US Open on Wednesday.
Stephens sees success of Black women inspiring new generation.
Russia's Maria Sharapova was knocked out of the BNP Paribas Open at Indian Wells on Monday after a shock loss to Italian qualifier Camila Giorgi.
The tournament is the first in five months since the Tour was suspended due to the COVID-19 pandemic and Martic said she felt the effects of not playing competitive tennis for so long.
Serena faces hard-hitting Giorgi in first round while former World No Hewitt play his final grand slam
Images from the Australian Open in Melbourne on Thursday.
Both are in superb form and have yet to drop a set at this year's championship. Britain's Murray, the number one seed, will face 28th ranked Fabio Fognini from Italy while Spaniard Nadal will go up against Russian Karen Khachanov, ranked 30.
Star Indian wrestler Bajrang Punia kept himself in the medal race by reaching the semi-finals even as three of his compatriots faded in the men's freestyle competition at the World Championship, in Budapest, on Sunday.
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.
While the stakes could not be higher on Thursday, Sloane Stephens said there will be no "weirdness" in the locker room.
American skier Lindsey Vonn is enjoying her good life after splitting from golf legend Tiger Woods.
Naomi Osaka settled her nerves and stepped up her preparations for the Australian Open by beating Alize Cornet 6-2, 6-2 to reach the last 16 of the Gippsland Trophy warm-up tournament in Melbourne on Tuesday.
Images from Day 3 of the 2022 Australian Open in Melbourne on Wednesday.
Former champion Naomi Osaka is wearing a different facemask for each of her matches at the US Open this year.
A summary of Sunday's action in the FIFA World Cup qualifiers across Europe.
Australian Open champion Caroline Wozniacki has called for 23-time Grand slam winner Serena Williams to be seeded at next month's Wimbledon Championships ahead of the All England Club's meeting on Tuesday.
Summary of sports events and persons who made news on Tuesday
Images from Day 3 of the 2020 US Open in New York, on Wednesday.
A makeshift England side beat Romania 1-0 in their final Euro 2020 warm-up game, while Belgium's Romelu Lukaku underlined his status as one of the world's top strikers with his 60th international goal to secure a 1-0 win over Croatia.