That is it for now though from us.

All the best reaction from Thanasi Kokkinakis's win and news of Nick Kyrgios's fate will be right here on the Tennis page.

Bye for now.

As we leave you there are some extraordinary scenes out on Margaret Court where Thanasi Kokkinakis is slapping palms all the way around the arena.

The 18-year-old Australian has saved four match points to beat Latvia's world number 13 Ernests Gulbis 8-6 in the fifth.

It's been a good day for the Aussies.

It could get better pretty soon as well. Fellow teenager Nick Kyrgios is two sets to one up on Federico Delbonis.

Image source, Getty Images

You can keep across the outcome of that one on our live scores page.

And a little fast-forward.

British number one Heather Watson takes on Bulgaria's Tsvetana Pirinkova in Tuesday's opening match on court 14 at 00:00 GMT.

At the same time, Kyle Edmund will play his first main draw match at Melbourne Park against American Steve Johnson on court 22.

James Ward will face Spanish 31st seed Fernando Verdasco in the second match on court seven at around 02:00.

Time for a little rewind on what we have seen earlier today.

First and foremost - Andy Murray is through to the second round via a 6-3 6-4 7-6 (7-3) win over India's Yuki Bhambri.

In the women's draw, Ana Ivanovic is top of a list of eight seeds to fall on the opening day.

The 11th seed against a wildcard in the second-court headline slot? It was a risky call by the Australian Open organisers, but the ever-entertaining Ernest Gulbis against local boy Thanasi Kokkinakis is brewing up lovely.

Image source, Getty Images

The 18-year-old Australian is level at 6-6 in the fifth and deciding set.

BBC Radio 5 live sports extra

British Fed Cup captain Judy Murray: "It was pretty straightforward overall. Sharapova just one wobble in the first set when she lost her serve. Martic has some good shots but Maria just had too much firepower."

Maria Sharapova pumps an attempted lob long to give Petra Martic 30-30 after being dragged forward.

She goes back to what she does best, hanging back and playing with angles and depth to draw the mistake.

Martic can play that game as well however.

The Croatian keeps her nerve, keeps hitting up to the baseline and milks a mistake and a break point.

Sharapova is not to be denied though. A peppy ace straight down the centre closes out the affair.

Sympathetic cheers from the Rod Laver crowd as Petra Martic keeps her hand in.

Maria Sharapova is not happy with the line calling, looking suspiciously for a trace of one of her opponent's apparent aces.

She won't have to put up with it for long. She serves for the match next and will have some fresh fuzz to do so.

Maria Sharapova cleaves the service box with a rocket ace down the middle to knock Petra Martic back from break point.

Whatever slim chances there were of Martic getting back into the match might have evaporated into nothingness right there.

Sharapova doesn't give the Croatian a second sniff. All that is left for Martic is to avoid being fore-fed the bagel.

Image source, Other

Jake Gledhill:, external How revision is supposed to be done, with the Australian Open on every available screen!

That looks intense.

Image source, Reuters

- South Africa's Kevin Anderson made a strong start in the aces count with a whopping 32 in his opening match against Diego Schwartzman

- Sam Groth (pictured) managed a paltry 24 aces but the Aussie did hit the fastest serve of the day (so far) at 148mph (238km) in his win over Filip Kranjinovic

- Christina McHale's 111-minute final set against Stephanie Foretz was longer than 15 three-set matches this year

- Sara Errani made a remarkable 93% of her service returns - 43 of 46 - in her 6-1 6-0 win over Grace Min

Petra Martic is slipping below the surface here.

She produces a cute drop-shot to nick a point off Maria Sharapova, but there is little else for her to remember fondly in that game.

Sharapova revs up the steamroller with another break.

Maria Sharapova's coaching team, headed by Sven Groeneveld, are all plastered in the logo of her personal car sponsor. Human sandwich board is part of the job description apparently.

Still there is not a lot else for her camp to complain about. The Russian is made to pay for an over-cooked drop-shot as Petra Martic runs it down with ease, but otherwise it is a rock-steady hold to give the scoreboard a lop-sided feel in the second set.

Maria Sharapova can smell the stable as Arsene Wenger would say.

She steps up to break serve and take a steely grip on the match right at the start of the second set.

Her service return at deuce - stretching wide to somehow flick back a brilliant cross-court winner - was worth the break alone.

Maria Sharapova nails her a serve out wide from deuce, plotting a precise arc out wide and congratulating herself and the ball streaks out of Petra Martic's reach.

More pressure, more percentages, more nagging consistent depth and Martic punts into the net under baseline pressure to give her the opening game of the second set.

BBC Radio 5 live sports extra

British Fed Cup captain Judy Murray on 5 live sports extra: "Sharapova has been pretty impressive. She has been very aggressive as always, and punishing anything that lands short. She has served well in patches but Martic has variety, a good first serve, when it goes in, and has a good drop-shot and slice so can disrupt Sharapova, but only if she can get in to the driving seat. That is something Sharapova doesn't allow you to do very often though."

Image source, AFP

As quickly as the route back into the opening set appeared, so it is snuffed out by Maria Sharapova.

To be fair Martic's fate was partly self-inflicted. With the set on the line, she loses the depth on her groundstrokes and strays long a couple of times.

That is all the encouragement that Sharapova needs, duly performing the a tennis version of the Heimlich manoeuvre as her opponent duly coughs up the game and set.

Now then. Petra Martic has grown into this match and now she really has something to get her teeth into.

A wayward forehand from Maria Sharapova gives the Croatian a look at 15-40 and two break points. Sharapova scrapes the first one back off the table, but the second sticks.

We are back on serve. But the shaky Martic action has to survive the pressure of the next game before we are level on the scoreboard.

Petra Martic, Maria Sharapova and the crowd all think that the Croatian's barnstorming serve out wide is the final shot of the game.

Crucially the umpire thinks not. A tiny snip of net cord calls everyone back and Martic has to tee off again at 40-30.

It's another corker, spitting wide. Sharapova parries her return and Martic bravely volleys away to seal it.

Maria Sharapova finds a lovely angled backhand punch to shut the door on Petra Martic as the Croatian looms at 30-40 and a break-back point.

Martic smiles up at her box despairingly. She had given Sharapova a real working-over before the Russian plucked that shot out of the ether.

Sharapova does not look back. She chases down a drop-shot, swats away an overhead and the game is bagged.