Briton Andy Murray regained his winning form as he eased past Croatia's Ivan Ljubicic 6-3 6-2 in the first round of the World Indoor Tournament on Tuesday.
It was the first time Verstappen, winner of a record 19 of 22 races last year, has won the first two races of a season. He has also won 19 of the last 20.
While she was keen not to take anything away from an impressive performance by Muguruza in Friday's match, Kenin said she had been hampered by a groin problem.
Serena Williams thrashed Russia's Dinara Safina 6-0, 6-3 on Saturday to win the Australian Open title and reclaim the world number one ranking. The American raced to victory in just 59 minutes to capture her fourth singles title at Melbourne Park, after her previous wins in 2003, 2005 and 2007, and her 10th Grand Slam overall.
World number one Rafael Nadal survived the longest match in Australian Open history to reach his first Melbourne Park final and earn a chance to deny rival Roger Federer a record-equalling 14th grand slam singles crown.
Dinara Safina charged into the semi-finals of the Australian Open on Tuesday with a 6-4, 4-6, 6-4 win over a brave Jelena Dokic. Dokic's emotionally-charged run at Melbourne Park had captured the imagination of her adopted homeland but her luck finally ran out against the in-form Safina.
The Serb said he threw in the towel in the quarter-final against Andy Roddick because of 'cramping and soreness in the whole body'.
Images from all the action on Day 3 at the Australian Open in Melbourne on Wednesday
Jelena Dokic, riding high on a wave of public sympathy and support, upset Russian 17th seed Anna Chakvetadze 6-4, 6-7, 6-3 on Wednesday to reach the third round of the Australian Open. The Serbian-born Australian registered her first win over a player ranked in the top-20 for five years and her first victory on Melbourne Park's centre court for a decade. Dokic's brave win was charged with a combination of raw emotion and pain.
Roger Federer set up a juicy third round clash with former Australian Open champion Marat Safin after finally subduing a stubborn Evgeny Korolev 6-2, 6-3, 6-1 on Wednesday.
Melbourne Park's first glimpses of Andy Murray and Rafael Nadal were brief on Tuesday but Serena and Venus Williams both gave full value at the Australian Open with their first round wins.
Serbia's tennis titans locked in their second round Australian Open spots on Monday while Andy Roddick scorched a sacrificial Swede and Roger Federer schmoozed his way through on Day One of the year's first Grand Slam. Ana Ivanovic, Jelena Jankovic and Novak Djokovic flew through early at Melbourne Park as did Roddick. Federer was a delight under the stars, finessing his way to round two with a 6-1 7-6 7-5 win over Italy's Andreas Seppi.
Doing enough but failing to dazzle, Ana Ivanovic safely navigated the first round of the Australian Open Monday with a 7-5, 6-3 win over Julia Goerges.
Roger Federer will begin his bid to equal Pete Sampras's record of 14 Grand Slam titles against Italian Andreas Seppi in the first round of the Australian Open next week. Top seed Rafael Nadal, who snapped Federer's record 237-week stint as world number one last August, will meet Belgium's Christophe Rochus after the draw was made at Melbourne Park on Friday.
A win for Djokovic would move him past Pete Sampras (14) to outright third on the list of Grand Slam title winners.
Police resorted to using pepper spray on a section of rowdy supporters packed into the Margaret Court Arena for Fernando Gonzalez's match against Konstantinos Economidis.
Aussie Millman loves the support that he gets in Melbourne.
Roger Federer boasted of his fitness, Maria Sharapova felt a bit rusty and Andy Murray berated himself but all three eased into the second week of the Australian Open with third round victories at Melbourne Park on Saturday.
All players who want a visa to compete in the Australian Open will need to be fully vaccinated for COVID-19, the country's immigration minister said on Wednesday, putting Novak Djokovic's title defence and Grand Slam record bid in doubt.
Tsitsipas was left searching for answers to explain the pounding at the hands of Nadal
This year marks the first that two quadruple champions are competing in the same season and their battle to see who joins Argentine legend Juan Manuel Fangio in second place on the all-time list with five titles promises to light up the series.
Lleyton Hewitt has long been a critic of the Rebound Ace surface used at Melbourne Park.
Roger Federer found that out this week when he was blocked access to a locker room at the Australian Open by a security guard who took his job very seriously.
Ekaterina Makarova, who upset an injured Serena Williams in the fourth round of the 2012 Australian Open, completed a Melbourne Park sweep of the Williams sisters by eliminating Venus 2-6, 6-4, 6-4 to advance to the second round on Monday.
Brothers Mike and Bob Bryan retained their Australian Open men's doubles title on Saturday after a 7-5, 7-5 victory over Jonas Bjorkman and Max Mirnyi.
Police were called in to investigate a report of a five-year-old boy who was indecently assaulted at the Aus Open earlier this week.
Hingis and Clijsters entered the two showcourts at Melbourne Park at almost the same time for their second-round matches.
Top seed Roger Federer beat Germany's Bjorn Phau 7-5, 6-0, 6-4 to open his Australian Open defence.
An Australian Open official said Williams had withdrawn from the first Grand Slam of 2007 because of a left wrist injury.
Serena and Venus Williams lost 3-6, 6-4, 6-2 to former champions Yan Zi and Zheng Jie in the quarter-finals.
Justine Henin and Maria Sharapova set up an explosive Australian Open quarter-final with crushing wins.
Former champion Amelie Mauresmo suffered her earliest Australian Open defeat since 2000 when she was shocked by unseeded Australian Casey Dellacqua in the third round.
Hsieh Su-wei proudly flew the Taiwanese flag on Friday when she became the first player from her country to reach the last 16 of a Grand Slam tournament. The 22-year-old qualifier edged out France's Aravane Rezai 6-2, 6-7, 6-4 and now plays top seed and world number one Justine Henin of Belgium.
An innocuous stomach virus may be the advantage the rest of the men's field need to stop world number one Roger Federer winning his third successive Australian Open title.
World number one Roger Federer will begin the defence of his Australian Open title against Argentine Diego Hartfield after the draw was made at Melbourne Park on Friday.
Marcos Baghdatis set up a final against Andy Roddick at the Kooyong Classic with a 6-2, 7-5 win over Chilean Fernando Gonzalez on Friday, declaring himself ready for a good run at next week's Australian Open.
David Nalbandian is fighting to be fit for Australian Open after pulling out of the warm-up event at Kooyong because of a back injury.
As one of the most recognisable faces in India, Sania Mirza is already something of an expert when it comes to dealing with pressure.
World number one Roger Federer has withdrawn from the Kooyong Classic, the warm-up event for next week's Australian Open, because of a stomach virus.