During his second round win at the Australian Open, Nadal hit a forehand return down the line straight into the head of the ballgirl, standing by the umpire's chair, and apologised with a kiss on the cheek.

The world number one had a scary moment during his round two victory over Argentina's Federico Delbonis in the second round.

Hot headed tennis ace Nick Kyrgios has apologised for launching an 'unacceptable' tirade during his nail-biting second-round match at the Australian Open.

She's expecting her first child with Today show host Karl Stefanovic in April.

She's the AFL WAG who never puts a foot wrong when it comes to fashionable displays on the red carpet.

MIKE DICKSON IN MELBOURNE: Williams looks increasingly unlikely to win that elusive 24th Major as the years tick by, and the changing of the guard in women's tennis becomes more apparent.

MIKE DICKSON IN MELBOURNE: There was heartbreak on Friday as Caroline Wozniacki ended her career in defeat, while Serena Williams missed out on a chance to win her 24th Grand Slam.

MIKE DICKSON IN MELBOURNE: Jamie Murray has admitted that he has no plans to partner his brother Andy in the Olympics this year, preferring to stay with his regular partner.

Allison Langdon recently made a successful return to the Today show opposite Karl Stefanovic. 

The altercation occurred just before 7pm on Saturday at Melbourne Arena ahead of Kyrgios's third round against Russian Karen Khachanov.

Patrick Mouratoglou, the Frenchman who supervises Serena Williams' career, admitted that he was shocked by her exit to Qiang Wang on a day of shocks at the Australian Open.

MIKE DICKSON IN MELBOURNE: Long before he set up what should be a pulsating fourth-round against Rafael Nadal, Nick Kyrgios had already commenced hostilities.

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.

The Swiss maestro cast aside Marton Fucsovics at Melbourne Park on Sunday, before telling the crowd they still had time to celebrate the national day as the clock struck 11.30pm.

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.

American tennis stars Coco Gauff and Sofia Kenin were battling it out in the fourth round of the Australian Open in Melbourne on Sunday when the crowd began to chant at them.

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.

The Australian gave it his all in a spirited performance but went down 6-3 3-6 7-6 7-6 in four sets against the Spaniard in an emotion-charged showdown.

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.

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 Open fans did a double take on Saturday night when they thought Liam Hemsworth was taking on Nick Kyrgios in a third-round match-up. 

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.

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.

Australian Open organisers issued a stinging rebuke to John McEnroe and Martina Navratilova after they joined forces to protest about Margaret Court and her controversial views.

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.

MIKE DICKSON IN MELBOURNE: By now Roger Federer should have been back in Switzerland, embarking on the family skiing holiday he has planned.

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.

In an extremely close match at Melbourne Park on Monday night, Nadal snatched victory in the final set tiebreaker despite Kyrgios being in form and serving 25 aces.

The former world number one said he's been supporting Kyrgios from the sidelines since he was an up-and-coming teenager.

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

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

She has kept a relatively low profile after retiring from her incredible sprinting career.

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.