She is the second Swiss player to win the tournament after Martina Hingis won the inaugural edition in 2001.
While knowing the limits of his body and full of praise for his team for being able to patch him up repeatedly, the 37-year-old admitted fortune has played a part in his longevity.
Summary of sports events and persons who made news on Saturday
Roger Federer took 55 minutes to dispel all injury doubts with a 6-2, 6-1 routing of unheralded German Tobias Kamke in the second round of the Brisbane International on Thursday. Media speculations swirled around the fitness of the world number three less than two weeks before he launches his bid for a fifth Australian Open title and the Swiss maestro dismissed them by dropping only three games in a lop-sided contest. "I'm going to do my best to stay injury free and give myself a chance to win another grand slam," Federer said after setting up a quarter-final against Grigor Dimitrov.
On a day when top seed Sloane Stephens survived a scare before beating Ajla Tomljanovic 4-6, 6-4, 6-4, Sakkari showcased supreme court coverage skills throughout her almost two-hour match against Bertens.
Overpowers Svitolina to reach second straight US Open final
Fourth seed Rafael Nadal showed he is healthy and ready to challenge for a third US Open title as he rolled into the last 16 at Flushing Meadows on Friday with a fist-pumping 6-1, 6-4, 6-2 win over Russian Andrey Kuznetsov.
The World No 2 announced her commitment to the social media entrepreneur shortly before the New Year and while it was "great", she was pushing it to the back of her mind, at least until after Melbourne Park.
Roger Federer returned from a month-long layoff with a 6-4, 6-4 second round victory over Roberto Bautista Agut on Tuesday at the Western and Southern Open in Cincinnati.
Former champion Maria Sharapova found inspiration in a change of dress to put away unseeded American Lauren Davis 6-1, 6-7(5), 6-0 at the Australian Open on Friday and set up an intriguing fourth round match with rising Swiss talent Belinda Bencic.
Bencic hopes Open organisers make it fair for players in isolation.
Defending champion Djokovic fired his 15th ace on match point to defeat Querrey but his serve had been an issue earlier in their second-round encounter.
Roger Federer believes his six-month absence due to a knee injury could help prolong his playing career, with the 17-times Grand Slam winner saying he has enjoyed the break.
Serena Williams and Marin Cilic both survived third round scares on Friday to keep their US Open title defences on track but there was no escape for Rafael Nadal with the twice-winner going down in a late night thriller.
IMAGES of the all the action from Day 1 of the Australian Open played at Melbourne Park on Monday
Images from Day 8 of the 2021 US Open in New York on Monday.
A relieved Rafael Nadal felt the confidence come flooding back in a first-round romp at the Australian Open on Monday.
The fifth-seeded Austrian, who saved two match points, will face Novak Djokovic on Saturday after the world number one's opponent Marin Cilic withdrew with food poisoning.
Ferrer, 37, announced earlier in the year he would end his 19-year career at the Madrid Open and prolonged his time on court by a day by beating Roberto Bautista Agut on Tuesday, but was easily overpowered by world number four Zverev.
A round-up of tennis matches played on Tuesday.
Serena Williams must navigate a heavily American quarter of the draw including sister Venus to complete a calendar sweep of the four Grand Slams, while two sensational quarter-finals loom on the men's side after Thursday's U.S. Open draw.
Novak Djokovic and Serena Williams are top seeds at the major starting Monday
Novak Djokovic destroyed a woeful Stefanos Tsitsipas 6-1, 6-2 to book his place in the semi-finals of the Paris Masters.
Reigning champions Novak Djokovic and Serena Williams have been named top seeds for the Australian Open starting on Monday.
Stan Wawrinka showed his class in both singles and doubles to lead the Singapore Slammers to victory in the International Premier Tennis League (IPTL) final in front of a delighted home crowd at the Indoor Stadium on Sunday.
Photos from matches played Day 7 of the Australian Open at Melbourne Park on Sunday
Rafael Nadal easily avoided the embarrassment of a back-to-back first round exits at the Australian Open on Tuesday, ramping up his serve and rattling off 39 winners to beat Florian Mayer 6-3, 6-4, 6-1 on Rod Laver Arena.
Rafael Nadal gave a much improved performance to advance into the quarter-finals of the Barcelona Open on Thursday, dispatching Spanish compatriot and crowd favourite David Ferrer 6-3, 6-3.
Serena Williams has been vulnerable this Grand Slam season but unbeaten in the year's first three major championships.
British 13th seed Johanna Konta felt 'embarrassed' after recovering from a health scare at a humid US Open on Wednesday to claim her place in the third round with a 6-2, 5-7, 6-2 win over Bulgaria's Tsvetana Pironkova.
Nadal faced no break points in a ruthless display to set up a meeting with Canadian Denis Shapovalov.
The 16-times Grand Slam champion, who has been slightly ill lately, was kept on his toes before racing to victory to set up a meeting with seventh seed Stefanos Tsitsipas.
Nick Kyrgios needs to improve his fitness to have a chance of winning Grand Slams, former world number one Jim Courier said on Wednesday.
Rediff.com takes a look at some interesting highlights of the tournament.
Images from Day 4 of the Wimbledon tennis championships played in London, on Wednesday.
Russia, last year's runners-up, were unable to call on world number six Maria Sharapova who was injured
Caroline Wozniacki used her aggressive groundstroke game to near perfection on Tuesday and pummeled Italy's Sara Errani 6-0, 6-1 to reach the semi-finals of the US Open.
Images from Day 2 of the Australian Open in Melbourne on Tuesday
With fire in their bellies, former Grand Slam champs Rafael Nadal and Roger Federer are targetting a fresh return to the tennis courts in 2017.
World number two Rafael Nadal dropped a set at the Barcelona Open for the first time in four years before advancing to the last 16, beating Argentine Leonardo Mayer 6-7(7), 6-4, 6-2 on Wednesday.