Australian Open LIVE: Andy Murray vs Tomas Martin Etcheverry latest score updates after Coco Gauff and Daniil Medvedev wins

*Andy Murray 0-0 Tomas Martin Etcheverry

Etcheverry won the toss but elected to receive first, so we will see Murray’s new serve in action to start this first-round tie.

Plenty of support for Murray and a few saltires in the Melbourne crowd.

Here we go! Andy Murray is back at the Australian Open, a tournament where he is a five-time finalist, as the 36-year-old takes on Argentina’s Tomas Martin Etcheverry.

It’s a hot day in Melbourne and Murray will start this match in the blazing summer sunshine. There have been a few players dropping off in their games due to cramp so far today.

And Murray and Etcheverry, the 30th seed, shared a couple of epic battles last season. Murray and Etcheverry played at Indian Wells and in Basel, with each best-of-three sets match going the distance and reaching the three-hour mark. Murray won in Indian Wells before the Argentine Etcheverry got his revenge at the Swiss Indoors.

Today is best-of-five sets, of course, so it could go even longer.

Murray played two five-hour matches in Melbourne last season, defeating Berrettini and Kokkinakis.

While we wait for Murray to come out on court, here are a few more results from this morning:

Last year’s runner-up Stefanos Tsitsipas recovered from losing the opening set to lucky loser Zizou Bergs as the seventh seed closed out a 5-7 6-1 6-1 6-3 win.

Bergs was a late replacement for the injured Matteo Berrettini, and Tsitsipas said the change of opponent had thrown him off his game early on.

And Alexei Popyrin will take on defending champion Novak Djokovic after he won the all-Aussie battle against Marc Polmans in straight sets.

Germany’s Laura Siegemund has meanwhile defeated the Russian 17th seed Ekaterina Alexandrova to win 6-2 3-6 7-6(9) and reach the second round, where she will face Australian Storm Hunter.

Mannarino outlasts the 38-year-old Wawrinka, who had nothing left in the fifth set as the Frenchman romps home 6-0 in just 25 minutes.

The exertions of a three-hour battle in the Melbourne heat caught up with the veteran and Mannarino clinched the fourth and fifth sets to advance.

It means Andy Murray is up next on the Kia Arena.

This fifth set is racing away from Stan Wawrinka, who is really struggling now with the heat.

The 38-year-old is down a double break to the French 20th seed Adrian Mannarino and this first-round tie is heading for a swift conclusion – with Andy Murray up next.

If you’re up early to watch Andy Murray, you can go back to bed for another hour.

Adrian Mannarino has defied his cramping legs to take the fourth set against Stan Wawrinka and force a decider out on Kia Arena.

The 20th seed and the three-time grand slam champion both look to be struggling with the conditions on what looks a hot day in Melbourne.

We’re over three hours already and are heading towards four – which probably pushes Murray to closer to 6:30am at this rate.

An impressive win for young American star Ben Shelton this morning, as the 21-year-old defeated Roberto Bautista Agut in straight sets (6-2 7-7 7-5).

Shelton reached the Australian Open quarter-finals last season but his stock has risen significantly since also making it to the US Open semi-finals last season.

He has a lot of grand slam rankings points to defend this year but has made a confident start against the tricky Spaniard.

Coco Gauff has mocked a “hype post” created by the United States Tennis Association (USTA) as “hideous” as the US Open champion said the cartoon made her and her fellow American players look “so ugly”.

The social media post by the USTA depicted the seeded American players at this month’s Australian Open in the style of the Wild Thornberrys cartoon but was swiftly deleted as Gauff reacted in horror after seeing the image.

The US Open champion and world No 4 reacted to the social media post on her Instagram story and said it was the “worst thing I’ve ever seen”.

“Like a caricature artist decided to make [us] all look like hideous looking people,” Gauff said.

“The art style is cool for a cartoon show but not for a hype post. Foul.”

Wawrinka has battled from a set down to lead Adrian Mannarino, the 20th seed, after breaking the Frenchman late in the third set.

Mannarino was also hit by cramps late in the third set – so Wawrinka will be hopefully of wrapping up the win from here.

Andy Murray is due on court after Wawrinka but a 60-minute third set means we are running behind schedule slightly.

The second day of the Australian Open was supposed to stage the first-round meeting between Stefanos Tsitsipas and Matteo Berrettini, on paper a semi-final clash at a grand slam.

That was before Berrettini was forced to withdraw from the Australian Open with a foot injury, with Tsitsipas now facing the lucky loser Zizou Bergs on the Rod Laver Arena.

And wouldn’t you just know it, Bergs has taken the opening set against last year’s runner-up, winning 7-5. Tsitsipas is a break up in the second set, however.