Roger Federer saved seven match points in an extraordinary Australian Open win over Tennys Sandgren.
World number one Rafael Nadal was pushed hard before getting past Nick Kyrgios at the Australian Open.
Simona Halep and Garbine Muguruza marched into the last eight on Monday, as Angelique Kerber fell to Anastasia Pavlyuchenkova.
We take a closer look at Novak Djokovic's form as his Australian Open campaign continues on Tuesday.
Roger Federer played himself into some impressive form as he defeated Marton Fucsovics in four sets to reach the quarter-finals.
Olympic Games qualification is on the agenda for teenage sensation Coco Gauff, who lost in the Australian Open last 16 on Sunday.
Despite taking a medical time-out with a hamstring injury in the first set, Nick Kyrgios beat Karen Khachanov in five to face Rafael Nadal.
Coco Gauff, 15, produced a masterful display to beat defending Australian Open champion Naomi Osaka 6-3 6-4.
Novak Djokovic lost just eight points on serve in a thrashing of Yoshihito Nishioka at the Australian Open.
A wasteful Rafael Nadal joined Daniil Medvedev and Alexander Zverev in the Australian Open third round.
It was a good day for the seeds at the Australian Open, where Simona Halep and Karolina Pliskova were among the winners.
As several seeds fell in the men's draw, Roger Federer and Novak Djokovic reached the Australian Open third round.
In warm but breezy conditions in Melbourne, third seed Naomi Osaka defeated Saisai Zheng 6-2 6-4 on Margaret Court Arena on Wednesday.
Felix Auger-Aliassime was the biggest name to fall on day two of the men's singles at the Australian Open, as Rafael Nadal progressed.
In a rematch of their 2019 Wimbledon encounter, 15-year-old Coco Gauff reigned supreme again over Venus Williams.
Ahead of the Australian Open, we take a look at the best Opta facts related to the first grand slam of the year.
World number one Ash Barty heads to the Australian Open having ended her wait for a title in her home country.
Will Novak Djokovic land an eighth Australian Open men's singles title, or could a first-time grand slam champion be crowned in Melbourne?
Ugo Humbert edged Benoit Paire to win his first ATP Tour title at the Auckland Open.
As she deals with a hamstring injury, Angelique Kerber is hopeful about her fitness.
Venus Williams must take on Coco Gauff at another major, while defending champion Novak Djokovic may have Roger Federer in his sights.
Nicolas Jarry believes "cross-contamination" caused him to fail a drugs test at the Davis Cup Finals last year.
Poor air quality in Melbourne has already impacted the Australian Open, where qualifying is scheduled to begin on Tuesday.
The ITF has joined with three of the four grand slams to pledge further funds to the bushfire relief effort in Australia.
Novak Djokovic overpowered Rafael Nadal in leading Serbia to victory in the inaugural ATP Cup final Sunday, capping a perfect build up to his Australian Open title defence.
Serena Williams ended her drought by defeating fellow American Jessica Pegula 6-3 6-4 in the women's final in New Zealand.
Andrey Rublev made light work of French qualifer Corentin Moutet to win the Qatar ExxonMobil Open in straight sets
Andrey Rublev revealed his joy at winning the Qatar ExxonMobil Open for the first time
Qatar Tennis Federation Secretary General Tariq Zainal has been confirmed as the new Vice-President of the Asian Tennis Federation
Ash Barty proved too good for Petra Kvitova in the Australian Open quarter-finals.
Sofia Kenin, 21, moved through to a maiden grand slam semi via Tuesday's 6-4 6-4 victory over Ons Jabeur on Rod Laver Arena.
After a fourth-round battle in Melbourne, Rafael Nadal praised Nick Kyrgios' Australian Open run.
Roger Federer's interview following his QF victory over Tennys Sandgren at Australian Open 2020.