Third seed Stefanos Tsitsipas kept his unbeaten streak this year intact Friday with another romp at the Australian Open to set up a round of 16 clash with dangerous Italian Jannik Sinner.

Andy Murray Friday blamed the balls for the marathon rallies that have been a feature of the Australian Open, saying the issue needed to be looked at.

Veteran Andy Murray roared back in a five-set epic which ended past 4:00am to reach the Australian Open third round with a remarkable victory over home hope Thanasi Kokkinakis early Friday.

Tennis players can be particularly superstitious, so it does not bode well that there is one thing that links a whole bunch of withdrawals and upsets from this year’s Australian Open.

Iga Swiatek is not scared to change things up.  It’s a rare admission from a top tennis player given the sport’s penchant for routines and superstition. But the World No.1 is into the third round without dropping a set.

Olympic champion Usain Bolt is seeking to recover more than $12.7 million that disappeared from his account with a Jamaican investment firm and is willing to take the case to court if necessary, Bolt's attorney said.

Jawad Bhuiyan and M Tushar had to be content with the runners-up trophy once again in the ITF Asia U-14 Development Championships as the Bangladeshi duo suffered a comprehensive defeat against their Pakistani opponents in the final of the boys’ doubles event at the Sheikh Jamal National Tennis Complex in Ramna yesterday.

Defending champion Rafael Nadal hobbled out of the second round in a huge upset at the Australian Open on Wednesday, as Coco Gauff beat Emma Raducanu in a battle of the rising stars.

An irrepressible Daniil Medvedev overcame a partisan crown and tough veteran John Millman to march a step closer towards a third consecutive Australian Open final on Wednesday.

Coco Gauff won the battle of the game's bright young prodigies on Wednesday as she battled past Emma Raducanu 6-3, 7-6 (7/4) and into the third round of the Australian Open.

 Defending champion Rafa Nadal bowed out of the second round of the Australian Open on Wednesday after suffering an injury during his 6-4 6-4 7-5 defeat by American Mackenzie McDonald.

Defending champion Rafael Nadal crashed out of the Australian Open in round two to 65th-ranked American Mackenzie McDonald in a major upset Wednesday, his worst Grand Slam result in seven years.

Intense heat and torrential rain played havoc at the Australian Open on Tuesday, but Novak Djokovic and Andy Murray battled past their opponents and the elements to emerge with momentous victories.

Second seed Ons Jabeur joked that her coach was "going to kill me" after her quest for a maiden Grand Slam title at the Australian Open began with a shaky three-set victory on Tuesday.

Andy Murray stunned Italian 13th seed Matteo Berrettini on Tuesday, saving a match point to prevail over five gruelling sets and book a spot in the Australian Open second round.

Tennis Australia on Tuesday banned Russian and Belarusian flags at the Australian Open after Ukraine's ambassador demanded action when they were seen among the crowd.

Novak Djokovic makes his eagerly anticipated return to the Australian Open on Tuesday and women's world number two Ons Jabeur will also launch her title bid.

World number one Iga Swiatek is the favourite to win an Australian Open women's draw shorn of some of its biggest recent stars.

Frances Tiafoe won his first-round match at the Australian Open on Monday but it was the American's outrageously colourful kit which set tongues wagging.

Novak Djokovic makes his eagerly anticipated return to the Australian Open on Tuesday and women's world number two Ons Jabeur will also launch her title bid.