The Australian tennis bad boy is through to the fourth round after winning a five-set thriller against 16th seed Russian Karen Khachanov.

The bitter rivalry between the two tennis heavyweights began last February at the Mexico Open with a petty on-court dispute and escalated from there, with more fireworks at Wimbeldon.

Actress Pia Miller and her multimillionaire boyfriend Patrick Whitesell packed on the PDA while attending the Australian Open on Sunday. 

MIKE DICKSON IN MELBOURNE: One former tennis prodigy from Florida defeated a present one when fourteenth seed Sofia Kenin brought the run of Coco Gauff to an end.

The Serbian world number two opened up about his hopes for son Stefan, 5 and daughter Tara, 2 moments after his fourth round straight sets win over Argentinian Diego Schwartzman on Sunday.

Australia's golden girl of tennis survived a mid-match scare to down world number 18 seed Alison Riske to win  6-3 1-6 6-4 to book a quarter finals berth.

MIKE DICKSON IN MELBOURNE: Novak Djokovic sent out a message to his rivals after cruising through to the quarter-finals, but 15-year-old sensation Coco Gauff saw her fairytale run end.

She shares two adorable children with partner Chris Walker who she met while he was working on The Project.

Having been pushed to the brink by John Millman in a classic on Friday, Federer again dropped the opening set to Hungary's Marton Fucsovics. But this time he did not need a deciding set, winning in four.

Ash Barty has served a brilliant response after the debate over changing date of Australia Day threatened to overshadow her stunning fourth round win at her home grand slam.

Regardless of what happens in his fourth-round match against Rafael Nadal, there is a lot Nick Kyrgios can take away from this month that will serve him well for the rest of the season.

Austrian Dominic Thiem, 26, was asked about the bizarre whispers after his straight sets win over Frenchman Gael Monfils at the Australian Open on Monday.

Australian legend Court - a devout Christian - has caused controversy for saying she doesn't believe gay people should be allowed to marry because the Bible does not condone it.

MIKE DICKSON IN MELBOURNE: Court's uncompromising opinions on LGBT matters have made her a polarising figure and McEnroe became the latest high profile figure to attack her.

The Australian world 23 made his grand entrance to Rod Laver Arena wearing an LA  Lakers jersey after Bryant tragically lost his life in a helicopter crash on Sunday.

Australian tennis great Margaret Court was honoured on the 50th Anniversary of her 1070- Grand Slam but she was met with some boos, rainbow flags and wasn't allowed to speak.

The polarising Australian tennis bad boy earned the respect of fans and his arch rival after bowing out of the grand slam in a pulsating fourth setter on Melbourne's Rod Laver Arena.

The 15-year-old played alongside Caty McNally, 18, in the third round of the Women's Doubles tournament today. Both decorated their sneakers in memory of Kobe

MIKE DICKSON IN MELBOURNE: Nick Kyrgios attempted to honour the memory of one of his basketball heroes, Kobe Bryant. In the end, the emotional Australian fell short against Nadal.

Lindy Klim turned heads on day eight of the Australian Open in Melbourne on Monday. 

World No.1 Rafael Nadal jovially called out veteran tennis reporter Ubaldo Scanagatta, 70, during the post-match presser when he accidentally dozed off.

Australian world number one Ash Barty has defeated Czech player Petra Kvitova to reach the Australian Open semi finals.

Roger Federer's opponent Tennys Sandgren needed medical attention when a ballkid collided with him during a crucial stage of their quarterfinal showdown at the Australian Open.

MIKE DICKSON IN MELBOURNE: Four years on from his terrifying collapse on the Rod Laver Arena Nigel Sears will be back in the Australian Open for a big match.

MIKE DICKSON IN MELBOURNE: Roger Federer rolled back the years to stage one of the most remarkable survival acts of his career to stay in the Australian Open.

Novak Djokovic paid tribute to Kobe Bryant as he continued his march through the Australian Open draw with a straight-sets victory over Milos Raonic in the quarter-finals.

Ash Barty's face is all over Melbourne endorsing range of products as she moves towards becoming the first homegrown female champion at the Australian Open in 42 years.

The former Australian tennis star, 34, interviewed her good friend after she beat Kvitova in the quarter finals of the Australian Open on Tuesday afternoon.

Spanish tennis star Rafael Nadal, 33, was stopped by security at the Australian Open in Melbourne Park on Wednesday for not having proper identification.

MIKE DICKSON IN MELBOURNE: Just when you thought the old order was continuing with its hegemony in men's tennis, Rafael Nadal finally met his match in terms of brutal baseline slugging.

Today host Karl Stefanovic and his wife, Jasmine Yarbrough, are expecting their first child together in May.

Italian chef Andrea Tranchero has dished out the exact meal Roger Federer eats before every game at the Australian Open - as he shares the 'match winning' recipe.

Australian-Italian chef Andrea Tranchero has dished out his very simple trick for plating up pasta like a professional - and it's a lot easier than you think.

Australian Open viewers have been left scratching their heads as Ash Barty wore the same outfit as her opponent Sophia Kenin.

Rebel Wilson was spotted greeting Olympic sprinter Cathy Freeman at the Australian Open in Melbourne on Thursday.

She lost her semi-final match to American Sofia Kenin in Melbourne on Thursday, going down in straight sets.

She's the model and Myer ambassador who spends most of her free time at the beach in Byron Bay. 

John McEnroe has hung up on radio shock jock Neil Mitchell following a fiery interview about the tennis legend's protest of the naming of Margaret Court Arena. 

She became a household name after starring in reality renovation programs Selling Houses Australia and The Block. 

The tennis badboy was knocked out of the Grand Slam on Monday after falling to Rafael Nadal 6-3, 3-6, 7-6, 7-6 in the fourth-round.

Apple technician Harry Xin said he had a racist encounter watching the Australian Open at Rod Laver Arena in Melbourne on Wednesday.

She's graced Australia's small screens for over 25 years.  

Tennis player Caroline Wozniacki and husband David Lee stepped out in style for an event this week.

MIKE DICKSON IN MELBOURNE: Despite facing a partisan crowd on the Rod Laver Arena the 32-year-old Serb showed again just how hard he is to beat at a venue where he has won seven times.

He's known to be one of the greatest cricketers in the world.  

The Pitch Perfect star, 39, looked stylish in an emerald green satin shirtdress, which featured a belted waist, accentuating her recent weight loss even more.

MIKE DICKSON IN MELBOURNE: Barty cradled her 12-week-old niece as she tried to shrug off the disappointment of ending Australia's long wait for a homegrown women's Open winner.

They're two of Australia's funniest ladies, and on Thursday, Rebel Wilson and Magda Szubanski teamed up for the AO Inspirational Series Lunch at the Australian Open in Melbourne.

MIKE DICKSON IN MELBOURNE: Joe Salisbury's 18-month journey from obscurity to Grand Slam winner is one step away from completion after he reached the Australian Open final.

MIKE DICKSON IN MELBOURNE: Every time Roger Federer loses to Novak Djokovic at a Grand Slam, his mind will surely wander back to Wimbledon last summer and the one that got away.