Novak Djokovic's father has been filmed posing with fans brandishing banned Russian flags at the Australian Open, including one featuring Vladimir Putin, in scenes Ukraine's ambassador Thursday slammed as "a disgrace".

Novak Djokovic said there was something extra behind his title charge at this year's Australian Open after being deported from the country last year and having to play his matches with an injured hamstring after suffering the problem in Adelaide.

Sania Mirza, India's greatest women's tennis player, stayed on track for a fairytale farewell after she reached the mixed doubles final at the Australian Open on Wednesday.

American men’s tennis is witnessing a resurgence with an unlikely trio reaching the Australian Open quarter-finals, and they are thriving off each others’ success.

Novak Djokovic delivered another masterclass at the Australian Open on Wednesday to thump fifth seed Andrey Rublev 6-1 6-2 6-4 and reach the semi-finals at Melbourne Park where he is bidding for a record-extending 10th crown and 22nd Grand Slam title.

Novak Djokovic can take a step closer to equalling Rafael Nadal's men's record of 22 Grand Slam titles when he faces Andrey Rublev on Wednesday for a place in the Australian Open semi-finals.

Magda Linette reacted with disbelief after continuing her dream run into the semi-finals of the Australian Open on Wednesday with a stunning 6-3 7-5 victory over former world number one Karolina Pliskova.

Aryna Sabalenka reached her maiden Australian Open semifinal with a battling 6-3, 6-2 victory over unseeded Donna Vekic on Wednesday at Rod Laver Arena in a 1hr 49min tussle.

Victoria Azarenka reached her first Australian Open semi-final since winning the title in 2013, then opened up Tuesday about overcoming “anxiety” and “fears of failing” on court.

Big-serving Elena Rybakina blasted her way into the Australian Open semi-finals on Tuesday, while Karen Khachanov followed suit in the men's draw after Sebastian Korda suffered a wrist injury.

Novak Djokovic demolished Alex de Minaur for the loss of just five games to sweep into a 13th Australian Open quarter-final and send an ominous warning Monday, showing few signs of his troublesome hamstring.

Player-turned commentator Jelena Dokic lashed out Monday at the "disgusting" body-shaming she has endured online while working at the Australian Open.

Caroline Garcia became the latest top-10 seed to fall at the Australian Open with a shock defeat to Magda Linette, but Aryna Sabalenka blasted her way into the quarter-finals on Monday.

Stefanos Tsitsipas battled into the Australian Open’s last eight on Sunday but women’s top seed Iga Swiatek and a tearful Coco Gauff became the latest big-name victims.

Third seed Stefanos Tsitsipas survived a huge scare Sunday to battle into a third consecutive Australian Open quarter-final and a showdown with Czech surprise package Jiri Lehecka.

American Sebastian Korda reached the quarter-finals of a Grand Slam for the first time on Sunday after defeating Poland's Hubert Hurkacz 3-6, 6-3, 6-2, 1-6, 7-6 (10-7) at the Australian Open.

World number one Iga Swiatek was knocked out of the Australian Open Sunday as Wimbledon champion Elena Rybakina blew the women's draw wide open by beating the red-hot favourite in straight sets.

Andy Murray’s brave Australian Open run ground to a halt against Roberto Bautista Agut, the Spaniard fending off the fatigued former world number one 6-1 6-7(7) 6-3 6-4 in the third round to advance on Saturday.

Andy Murray's 4:05 am finish eventually caught up with him at the Australian Open as the Briton bowed out in typically defiant style to Roberto Bautista Agut in round three on Saturday.

Sebastian Korda says he's "the worst athlete" in his high-achieving sporting family, but with a little help from tennis legend Andre Agassi the rising American is working hard to change the dynamic.