Gallery: The best pictures from an action-packed day four at the Australian Open

Third-round action continued at the Australian Open with Novak Djokovic, Alexander Zverev, Serena Williams and Simona Halep all in action at Melbourne Park.
Enter Kei Nishikori.
Go on, guess who it is.
The above picture was Nishikori as well, but onto a pumped up Elina Svitolina.
Blowing kisses after her win over Viktoria Kuzmova.
World number one Simona Halep had to dig deep to come through her second round match. Very deep.
From behind the lens.
A Stan Wawrinka backhand.
And then it rained and the ball kids had to do some mopping up.
Serena Williams was in action, and she was certainly enjoying herself.
Alexander Zverev looked nervy from the off, though, even with himself cheering him onto court.
The face of a man who’s had to deal with Novak Djokovic’s brilliant defence for two hours…
Certainly, the world number one seemed to be managing to reach pretty much everything!
More from Tennis365:
-
-
Johnny Nic: Don’t subject Andy Murray to mawkishly undignified Wimbledon send-off
-
Andy Murray comment: How Britain’s greatest-ever sportsman won his greatest battle off court
-
EXCLUSIVE: Annabel Croft tips Novak Djokovic to dominate tennis in 2019
-
Quiz! Test your knowledge on the history of the Australian Open
-
T365 Recall: 2009 Australian Open final featuring Rafael Nadal and Roger Federer
-
Latest
-
Tennis News
Novak Djokovic reveals key to his iconic 2011 US Open return against Roger Federer
Novak Djokovic has recalled his famous forehand return against Roger Federer at the 2011 US Open and revealed the key to the shot.
-
Tennis News
‘Novak Djokovic motivation will not change now he has 24 Grand Slams’
“I think this combination of the three elements is key and has been key in all his achievements since he started to play tennis.”
-
ATP Tour
Andy Murray makes admission about his season as he looks for a ‘strong finish’
Andy Murray has given an assessment of his year and outlined his intent to have a “strong finish.”
-
Tennis News
‘Novak Djokovic is superior to Roger Federer and Rafael Nadal in key area’, claims renowned coach
“All three have the main qualities but some are better than others in some areas.”
-
Tennis News
Emma Raducanu outlines her ‘ultimate dream’ for when she returns to tennis
Emma Raducanu has revealed what her “ultimate dream” is for when she is able to return to tennis.
-
Tennis News
Novak Djokovic recalls his favourite matches and the ‘highest level’ he has ever played at
Novak Djokovic has recalled some of the favourite matches he has played in his career
-
ATP Tour
Carlos Alcaraz confirms next event as he targets Novak Djokovic’s No 1 ranking
Alcaraz pulled out of Spain’s Davis Cup team due to fatigue, but he will be back next week in China.
-
Tennis News
Being teammates with Rafael Nadal and Novak Djokovic was ‘wonderful’ – Roger Federer
Roger Federer has hailed the Laver Cup “camaraderie” and appreciated being teammates with his great rivals.
-
Tennis News
Daniil Medvedev builds his perfect tennis player, ft. Roger Federer, Novak Djokovic, Rafael Nadal
Daniil Medvedev has built his perfect tennis player, with Roger Federer, Novak Djokovic, Rafael Nadal and himself all featuring.