A difficult few months saw her fail to win a tournament, lose her number one ranking and crash out of Wimbledon in the first round.
The Australian registered a 6-4, 6-4 victory over Marat Safin in the quarter-finals of the Cincinnati Masters.
Mardy Fish quit in the third set because of a back injury, allowing Andre Agassi to advance to the second round.
A summary of sports events and sports persons, who made news on Monday.
A summary of Friday's tennis action from around the world.
World No 55 Haase improved to a 2-2 career record against Zverev, including victories in their last two meetings.
India's tennis star Sania Mirza retained her numero uno status in women's doubles for the second consecutive year, despite failing to defend the WTA Finals Singapore title with partner Martina Hingis. Defending champions Sania and Hingis had lost to Ekaterina Makarova and Elena Vesnina in the semi-finals of the WTA Finals Singapore on Saturday.
The hard court, outdoor competition in Lexington, Kentucky, marked the WTA's first tournament in the United States since the coronavirus outbreak forced almost all sport into a long break earlier this year.
Former world number one Serena Williams looked sharp in her return to the hardcourts after a week-long break, soundly defeating Daria Gavrilova 6-1, 6-2 on Monday to advance to the second round of the Cincinnati Masters.
An FFT statement said it had consulted with the ATP, WTA and International Tennis Federation (ITF) to allow the Roland-Garros showpiece the benefit of an extra week.
An elbow injury forced Djokovic to retire against Czech Tomas Berdych in the quarter-finals of Wimbledon in 2017. After that came a series of early tournament exits and, finally, surgery.
Novak Djokovic overcame a battling Marin Cilic 6-4, 3-6, 6-3 to reach his sixth Cincinnati Masters final on Saturday while Roger Federer enjoyed a less-taxing route to the title match after his semi-final opponent David Goffin retired with a shoulder injury.
Federer looked more relieved than overjoyed when Tiafoe's forehand found the net on match point to keep his hopes of a 20th grand slam title alive.
World number one Naomi Osaka will "probably" defend her US Open title, even if it means defying her doctor's orders.
World number six Marin Cilic will be the biggest international star in the singles field at the upcoming Chennai Open, the only ATP 250 tournament in India.
Top seeded Ash Barty overcame a slow start to defeat Maria Sharapova 6-4 6-1, while Simona Halep battled past Ekaterina Alexandrova 3-6 7-5 6-4 in the second round of the Cincinnati Masters on Wednesday.
Nadal produced a rich vein of form as he thrashed Greek teenager Stefanos Tsitsipas in straight sets to clinch his fourth Canadian Masters 1000 title at the Rogers Cup
India's campaign came to an end at the Western and Southern Open after Sania Mirza and her Swiss partner Martina Hingis crashed out.
Nadal, who got a first-round bye, defeated Richard Gasquet 6-3, 6-4 to advance.
World number one Simona Halep pulled out of next week's WTA Finals due to a lower back injury.
Fiery Australian Nick Kyrgios mostly kept his cool en route to a 6-4, 6-2, 6-4 dismantling of Antoine Hoang in their second round clash at the US Open on Thursday. The 28th seed had a row with the umpire even before the match started but avoided a full scale meltdown to reach the third round at Flushing Meadows for the fourth time.
After losing the first set, Medvedev changed his approach midway through the second set, the Russian going for broke with pretty much every shot, particularly on second serve.
Roger Federer cruised to a 6-4, 6-4 win over Peter Gojowczyk in his first appearance since losing in the Wimbledon quarter-finals.
'It was exciting and this is why I came to New York, to go through these emotions'
After Nick Kyrgios, another Aussie involved in verbal volley as tempers flare in Ohio.
Novak Djokovic took a first unsteady step toward completing the calendar-year Grand Slam on Tuesday as the Serb laboured into the second round of the US Open with a 6-1, 6-7(5), 6-2, 6-1 win over dashing Danish teenager Holger Rune.
Andy Murray suffered his first defeat in nearly three months on Thursday when he was beaten by Latvia's Ernests Gulbis in the third round of the Rogers Cup. Playing just his second match since winning Wimbledon, Murray fell 6-4, 6-3 in less than an hour and a half in one of the key lead-up events to the US Open.
Former world number one Andy Murray won his first ATP tour singles match in nearly nine months with a 6-3, 6-7(6), 6-1 victory over American Tennys Sandgren in the opening round of the Zhuhai Championships.
Roger Federer kept up his sprint through the early rounds of the US Open on Thursday, steamrolling Steve Darcis of Belgium 6-1, 6-2, 6-1 to reach the third round of the year's final Grand Slam.
American great John McEnroe expects Roger Federer's sensational comeback season to continue in New York when the US Open kicks off on Monday.
The seventh-seeded Bulgarian advanced to his eighth ATP World Tour Masters 1000 quarter-final with a 6-3, 7-5 victory over Del Potro, who struggled with the intense heat in the closing stages of the one hour, 39 minute match.
In the absence of an injured Yuki, a lot would depend on how the left-handed Prajnesh, who won a singles bronze medal at the Asian Games, performs.
Top seed Rafa Nadal overwhelmed Russia's Daniil Medvedev 6-3, 6-0 to win his fifth Rogers Cup on Sunday in Montreal -- the first time he has retained a title outside of clay.
A day after celebrating his 36th birthday, Federer played the aggressive game that has propelled him to five titles, including two grand slams, this year, attacking the net and rocketing second serves.
Indian tennis star Sania Mirza received a confidence booster ahead of the US Open Grand Slam tournament beginning, on Monday, with a doubles title victory at the Connecticut Open with Monica Niculescu of Romania, in New Haven, USA.
India's Leander Paes and his German partner Alexander Zverev went down to the Spanish duo of Feliciano Lopez and Marc Lopez in a men's doubles first round match to bow out of the Cincinnati Open.
Four more performances like that at the O2 Arena this week should guarantee Andy Murray will end 2016 leading the pack.