A relentless Iga Swiatek stayed on course for a maiden Australian Open title as she powered into the second week with a statement victory over Emma Raducanu on Saturday.

Jessica Pegula has backed Novak Djokovic's call for more entertainment for fans, saying tennis should become less "stuffy" and "uppity."

A fired-up Novak Djokovic powered into the last 16 of the Australian Open on Friday in an ominous reminder of why he is a 10-time Melbourne champion, but he needed a medical break and used an inhaler.

Alcaraz is bidding to become the youngest man to complete a career Grand Slam -- winning all four majors -- in the Open Era.

The world number one remained on track to win her third consecutive Melbourne Park title but only after a rollercoaster scrap that lasted more than two hours on Rod Laver Arena.

Collins, 31, blew kisses to the fiercely partisan crowd, cupped her ear and even pointed to her backside after a stormy 7-6 (7/4), 4-6, 6-2 victory over Aiava, the last Australian woman in the draw.

The left-handed Californian Tien soaked up the applause at Margaret Court Arena after the biggest win of his young career following four hours and 48 minutes of seesawing action.

On-court coaching, previously banned and punishable by point deductions, disqualification or even suspension from tournaments is being positively encouraged at Melbourne Park with "coaching pods" at court level in the corners of the main stadiums.

A bad bout of asthma nearly derailed the comeback of former world number two Ons Jabeur at the Australian Open on Thursday, with the Tunisian saying she found it hard to breathe and nearly gave up in her second-round victory.

World number two Iga Swiatek romped into the third round of the Australian Open on Thursday to set up a high-profile clash with 2021 US Open champion Emma Raducanu.

Novak Djokovic made a slice of Grand Slam history on his way into the Australian Open third round on Wednesday but last year's women's finalist Zheng Qinwen was knocked out in the biggest shock so far.

The Spanish third seed showed no mercy to Japan's Yoshihito Nishioka, who was taught a 6-0, 6-1, 6-4 lesson on Margaret Court Arena in an 81-minute rout.

The normally ice cool "Queen Wen" got hot under the collar as she was sent packing 7-6 (7/3), 6-3 in the second round by world number 97 Laura Siegemund of Germany.

The feisty Russian, a three-time finalist in Melbourne, lost his cool in the third set before rallying to beat unheralded Thai Kasidit Samrej 6-2, 4-6, 3-6, 6-1, 6-2 on Rod Laver Arena.

The sixth seed from Kazakhstan demonstrated her pedigree as she manoeuvred the 16-year-old world junior number one from Australia to all parts of Margaret Court Arena.

The world number four wasted little energy to swat aside Jenson Brooksby, who is on the way back from a doping suspension, 6-2, 6-0, 6-3 on John Cain Arena.

Born in Japan, the 27-year-old has lived in the U.S. since childhood and has made LA her home.

In-form Gauff laid down a marker as she swept aside former champion and fellow American Sofia Kenin in straight sets on Rod Laver Arena.

Novak Djokovic has revealed a new secret weapon that he credits with helping keep him healthy and prolong his career -- a green "energetic disc".

Thunder and lightning saw players and fans rushing for cover, with the heavy rain a headache for organisers who face a match backlog.