IMAGES from all the action on Day 7 of the US Open played at the USTA Billie Jean King Tennis Center at Flushing Meadows in New York on Sunday.
Top seed Aryna Sabalenka shook off a second-set blip to win three back-to-back Wuhan Open titles after beating Chinese fifth seed and home favourite Zheng Qinwen
Gauff split from coach Brad Gilbert and flipped the script weeks later, however, winning her second WTA 1000 title last month at the China Open before reaching the Wuhan Open semis.
Maria Sharapova battled to a 6-4, 1-6, 6-2 victory over in-form Russian compatriot Svetlana Kuznetsova to reach the second round of the Cincinnati Masters on Tuesday.
Madison Keys stunned third seed Jessica Pegula 6-1, 6-3 in an all-American clash
World No 55 Haase improved to a 2-2 career record against Zverev, including victories in their last two meetings.
Third seed Alexander Zverev produced a near-flawless display to outclass former champion Holger Rune 6-3 7-6(4) on Saturday and return to the Paris Masters final after a gap of four years.
The two cases shocked the tennis world with many fuming at how they were handled by the authorities.
Olympic and Wimbledon champion Andy Murray picked up where he left off in Rio by drubbing Argentina's Juan Monaco to take his place in the third round of the Western & Southern Open in Cincinnati on Wednesday.
American Madison Keys overcame late leads by Svetlana Kuznetsova in both sets to defeat the Russian for the Cincinnati Masters title on Sunday.
Top seed Ash Barty rallied from a set down to power into the semi-finals of the Cincinnati Masters on Friday.
Serena Williams finished her last U.S. Open tune-up in style by blowing away Serbian Ana Ivanovic 6-4, 6-1 to win her first title at the Western and Southern Open in Cincinnati on Sunday.
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.
Jannik Sinner will hope to block out a rocking home crowd on Sunday when he faces Taylor Fritz in the US Open final at Flushing Meadows, where the 12th seed will be bidding to become the first American man in 21 years to win a Grand Slam singles title.
Victoria Azarenka won a showdown between the world's two top players by beating number one Serena Williams in a three set 2-6, 6-2, 7-6 thriller in the final of the Western and Southern Open on Sunday.
Need to raise game against Djokovic, says Medvedev ahead of US Open final
Simona Halep ended Beatriz Haddad Maia's dream run in Toronto
Medvedev on everyone's US Open radar after first round rout
A crowd favourite for her creative playing style, Ons Jabeur rolls into her second straight Grand Slam championship match brimming with confidence, with lessons learned from her heartbreaking loss at the All England Club to Kazakhstan's Elena Rybakina.
Rafael Nadal continued his perfect run on the North American hardcourts taming Czech Tomas Berdych 7-5, 7-6 (4) at the Western and Southern Open on Saturday to setup a final showdown with big-hitting American John Isner.
Novak Djokovic enjoyed a stress-free return to US competition following a two year absence
Rafael Nadal returns to the US Open for the first time in three years short of match practice and with big question marks about his fitness but few people will dismiss the Spaniard's chances of claiming a record-extending 23rd Grand Slam title.
The Indian ace beat Anna-Lena Groenefeld 6-4, 6-3 in the first round of the Western and Southern Financial Group Women's Open
World number one Serena Williams was at her lethal best as she crushed Romanian Simona Halep 6-0, 6-4 to romp into the semi-finals of the Western and Southern Open on Friday.
Nick Kyrgios has been fined $113,000 by the ATP for arguing with the chair umpire and smashing two rackets during his second-round loss at the Cincinnati Masters.
Alcaraz, winner of the last two Grand Slams at Roland Garros and Wimbledon, had made it to at least the quarter-final stage at every major in which he has competed since winning the US Open two years ago.
Naomi Osaka has four major titles under her belt but the second round at Flushing Meadows, Wimbledon and Roland Garros was as good as it got this year for the Japanese 26-year-old, who exited the Australian Open in the first round.
Second seed Daniil Medvedev will launch his bid to win his first major title against veteran Frenchman Richard Gasquet.
Federer's pullout from Cincinnati hands number one spot to the Spaniard
India's Sania Mirza and her women's doubles partner Barbara Strycova crashed out of the BNP Paribas Open after going down in straight sets in the quarter-finals at Indian Wells.
Novak Djokovic, Andy Murray, Rafael Nadal and Roger Federer all picked up third round wins at the Western and Southern Open on Thursday to set up a star-studded last eight in Cincinnati.
Novak Djokovic begins his hunt for a fifth Flushing Meadows crown when he meets Moldovan Radu Albot
World No 1 Serena Williams won a tense battle of U.S. Open champions by beating Australia's Samantha Stosur 7-6(7), 7-6(7) on Wednesday to reach the third round of the Western and Southern Open in Cincinnati.
A summary of Tuesday's action at the US Open.
They now face eighth-seeded pair of Canada's Vasek Pospisil and local boy Jack Sock, whom they beat 6-1, 6-4 in Paris.
Sania Mirza and Monica Niculescu stunned Wimbledon doubles champions Vania King and Yaroslava Shvedova to storm into the quarter-finals of the the Western and Southern Financial Group Women's Open in Cincinnati.
Osaka's hardcourt swing leading into the US Open has been rough
World number one Roger Federer warmed up for the defence of his U.S. Open title in perfect fashion as he beat fourth seed Novak Djokovic 6-1, 7-5 to win the Cincinnati Masters on Sunday.
Spain's Tommy Robredo shocked world number one Novak Djokovic 7-6(6), 7-5 on Thursday to move into the quarter-finals of the Western and Southern Open in Cincinnati.
Raducanu stormed into the third round of the Cincinnati Open