Jakub Mensik became the youngest Czech man to reach a Grand Slam semi-final after beating Joao Fonseca at the French Open, while Mirra Andreeva stormed into the last four and Alexander Zverev kept his title hopes alive.
13 of the men's seeds fell at the first hurdle -- a Wimbledon record since 32 seeds were introduced in 2001.
The Australian Open will offer a record A$111.5 million ($74.73 million) in prize money this year and while players welcomed the increase, top names like Coco Gauff and Aryna Sabalenka said the push for a bigger payout must continue across the Grand Slams.
Coco Gauff turned the tables on her father
Aryna Sabalenka took a big step towards retaining her Australian Open crown by beating American fourth seed Coco Gauff
Mboko, currently ranked 85th in the world, became the first Canadian to defeat three former Grand Slam champions in a single WTA event in the Open Era, with victories over Sofia Kenin, Coco Gauff and Elena Rybakina.
Images from the US Open women's semi-finals on Thursday.
Check out what the players are wearing at this year's Australian Open.
Aryna Sabalenka handed 18-year-old American Iva Jovic a comprehensive 6-3, 6-0 defeat in the quarter-finals at a sweltering Melbourne Park on Tuesday to remain on course for a third Australian Open title in four years.
Contenders lurk around every corner in New York, as a gruelling year has left the title vulnerable for those hoping to capture a maiden major title.
Coco Gauff was left star-struck by Justin Bieber in the crowd during her US Open match with Elise Mertens.
French Open runner-up Aryna Sabalenka broke down in tears and apologised for what she labelled a 'terrible final' after losing 6-7(5), 6-2, 6-4 to American Coco Gauff on Saturday.
Swiatek made the most of Kasatkina's string of unforced errors, peppering court Philippe Chatrier with winners.
Coco Gauff eked out a victory to reach her first Australian Open semi-final on Tuesday.
World number one Carlos Alcaraz faces a potential quarter-final clash with old foe Jannik Sinner in his US Open title defence, and American Coco Gauff is on a collision course with defending champion Iga Swiatek on the women's side.
'Everyone is tense. It's the last slam of the season. Your last chance to go deep at a slam for a while.'
IMAGES from the French Open quarter-finals played in Paris on Tuesday.
A frustrated Coco Gauff broke down in tears after her 7-5, 6-3 defeat by Jelena Ostapenko at the Australian Open on Sunday.
Carlos Alcaraz kept his Indian Wells 'three-peat' campaign on track with a straight sets win against Canadian Denis Shapovalov in the third round.
Frances Tiafoe, Taylor Fritz, Tommy Paul and Coco Gauff all advanced to the third round of the US Open on Wednesday to keep home hopes alive.
'Meeting a real queen, that would be pretty cool'
Images from the US Open women's singles third round matches, at Flushing Meadows, New York, on Friday.
Aryna Sabalenka fell 6-4, 4-6, 6-4 to Elena Rybakina on Saturday, the Russia-born Kazakh turning the tables on the Belarusian who beat her for the 2023 title.
'I think this tournament was the first tournament this year that I went in trying to win for myself, and I think that was the difference in my mentality'
'I grew up watching her. That's the reason why I play tennis'
Iga Swiatek survived a surprise U.S. Open second-round test on Thursday as men's top seed Jannik Sinner and Japan's four-times major winner Naomi Osaka cruised through.
Caroline Garcia and Kristina Mladenovic recovered from a set down to beat Americans Coco Gauff and Jessica Pegula
Zero women cracked the list of the world's 100 highest-paid athletes released on Wednesday by Sportico.
Romanian veteran Sorana Cirstea reached the quarter-final of the French Open, while Matteo Berrettini is rediscovering his confidence after a win.
Poland's Swiatek, who has dropped to fifth in the world rankings, has so far failed to win a title this year despite a few deep runs in tournaments, including the Australian Open semi-finals.
Travel disruptions following airspace closures in the Gulf have forced Daniil Medvedev and Andrey Rublev to miss an Indian Wells exhibition, while an ATP Challenger in Fujairah was cancelled amid security concerns.
Top trio eye Grand Slam glory with Sabalenka targeting third Australian Open crown
The 15-year-old American phenom was forced to dig deep to become the youngest player since Anna Kournikova in 1996 to reach the third round
She beat Jasmine Paolini in the quarter-finals and then made it back-to-back wins over top 10 players as she also defeated compatriot Coco Gauff by 6-1, 6-2 in the semifinals.
Poland battled past Switzerland 2-1 in the United Cup final on Sunday to banish the pain of title-round defeats in the previous two editions and secure a long-awaited maiden triumph in the season-opening mixed-team competition.
World No 1 Aryna Sabalenka, the most powerful player on the tour, will try to establish herself as an all-rounder with her first title in Paris.
IMAGES from Day 1 of the US Open played Flushing Meadows, New York, United States, on Monday.
Local favourite Thompson saved three match points before prevailing 5-7, 7-6 (6), 6-3 against Nadal, who was playing his first tournament after nearly a year out with a hip injury.
Coco Gauff battled past Elina Svitolina in the Auckland Classic final on Sunday to retain her title.
Coco Gauff is the first Black American to win the French Open since Serena Williams in 2015.