Victoria Mboko, a 19-year-old Canadian tennis player, defeated Australian Open champion Elena Rybakina in the Qatar Open quarter-finals, marking a significant step towards entering the WTA top 10 rankings.
Carlos Alcaraz and Aryna Sabalenka advanced to the semifinals of the Indian Wells tournament, along with Daniil Medvedev and Elina Svitolina, after a series of compelling matches.
World No 1 Aryna Sabalenka fended off a serious challenge from Anastasia Potapova to reach the fourth round of the Australian Open.
World number two Jannik Sinner survived a stern test from Joao Fonseca on Tuesday to reach the Indian Wells quarter-finals.
World number eight Mirra Andreeva warmed up for the Australian Open with a comfortable 6-3, 6-1 victory over fellow teenager Victoria Mboko in the Adelaide International final on Saturday to claim her fourth WTA Tour title.
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.
IMAGES from all the action on Day 8 of the Australian Open in Melbourne on Sunday.
Elise Mertens and Zhang Shuai won the Australian Open women's doubles crown, beating Danilina and Krunic to claim their first Grand Slam title together in Melbourne.
American 18-year-old Iva Jovic pulled off the biggest upset of her young career when she stunned Italian seventh seed Jasmine Paolini.
World number one Aryna Sabalenka has been named WTA Player of the Year for the second consecutive season after spending the entire year at the top of the rankings.
IMAGES from Day 4 of the matches played at the Australian Open at Melbourne Park on Wednesday.
Barbora Krejcikova harnessed her experience to knock promising Canadian teenager Victoria Mboko out of the US Open
Michelsen, seeded 26th, will face hard-hitting 11th seed Karen Khachanov of Russia, who upset eighth seed Casper Ruud in their fourth round match 6-4, 7-5.
Mboko saved a match point against Kazakh ninth seed Rybakina in front of adoring home support
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.
Alexander Zverev rallied from a set down to beat defending champion Alexei Popyrin in Toronto and move into the semi-finals.
Renata Zarazua, the only Mexican player in the US Open main draw, pulled off a stunning upset by beating sixth seed Madison Keys in the first round.
Olympic champion Zheng powers into French Open third round
Iga Swiatek was the latest top player to suffer an upset loss in Montreal as the Wimbledon champion
Sierra, who had already checked out of her accommodation, learned only at lunchtime on Monday that Belgium's Greet Minnen had pulled out of the tournament and that she had been selected in the draw for a lucky loser spot in the main draw.
Tenth seed Lorenzo Musetti rallied from a set down to beat Frenchman Giovanni Mpetshi Perricard in the first round of the US Open on Tuesday even as Carlos Alcaraz mauled big-serving American Reilly Opelka and veteran Venus Williams made an emotional exit.
Iga Swiatek continued her bid for a fifth French Open title when the Polish fifth seed overcame Romania's Jaqueline Cristian to reach the Roland Garros fourth round.
Italian Cocciaretto stuns Pegula in big Wimbledon upset; Olympic champion Zheng Qinwen was beaten by Czech Katerina Siniakova.
13 of the men's seeds fell at the first hurdle -- a Wimbledon record since 32 seeds were introduced in 2001.
IMAGES from the French Open matches played at Roland Garros on Wednesday.