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.
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.
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.
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.
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.
Jake Gledhill: How revision is supposed to be done, with the Australian Open on every available screen!
That looks intense.
- 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."
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.
When it is good it is very good, but when it is bad...
The powerful Petra Martic serve fluctuates between ace and double-fault and finally turns out to be her downfall rather than her saviour.
Maria Sharapova clinches the first break point and the trademarked clenched fist and shout routine gets an airing.
Maria Sharapova keeps doing what Maria Sharapova does. The Russian relentlessly works the percentages to hold serve. If the Deep Blue computer had played tennis rather than chess it would be something like Sharapova - cold-bloodedly working out the shortest route to victory.
That was more like it from Petra Martic.
A beefed-up serve that finds the corner of the service box with more regularity is followed up by a lovely tickle of a drop-shot to close out the game.
Sharapova is not the quickest out of the blocks generally and has a long way to stoop. She can't get to that one and it won't be the last time Martic deploys that shot surely.
Maria Sharapova has had her own bouts of service gremlins in her career, but she is steady as she blows there. A solid hold.
Early doors and Petra Martic is wobbling under the pressure of the showpiece arena.
Three double-faults take her teetering to break point, but the Croatian gets a hold of herself and the controls to pull out of the tailspin just in time.
Maria Sharapova has already set about raising standards in the line-calling by the way. She shoots daggers after one of her groundstrokes is called long and Hawk-Eye reveals it smeared the line.
Maria Sharapova is gaining on Serena Williams at the top of the rankings. If the Russian comes away with the title at the end of this fortnight, she will be back to world number one.
Martic is not a gimme of an opening-round match though.
The Croatian, 24 today, was up at 42 in the world before sliding down to her current rank of 184 after an injury-hit 2014. She beat Petra Kvitova in her only win over a top-five player.
Sharapova, grunt already echoing around the arena, shows enough aggression and get-go to take the first game.
Next up on Rod Laver is second seed Maria Sharapova against Croatian qualifier Petra Martic.
Warm-up done and it is Sharapova to serve...
Only one bit of Brit news today. But it was the biggest fish in our small pond.
Andy Murray put in a bit of a mixed performance as he overcame India's Yuki Bhambri 6-3 6-4 7-6 (7-3) in two hours 12 minutes on Margaret Court Arena.
In case you missed it earlier today, there has been some carnage in the bottom half of the women's draw with eight seeds dropping out of the main draw in total.
Ana Ivanovic (fifth), Angelique Kerber (ninth) and Sabine Lisicki (28th) are among those to fall. All of that means that Eugenie Bouchard's route through the tournament is seed free until the quarter-finals. She was a 6-2 6-4 win over Anna-Lena Friedsam earlier today.
Lu departs the court to well-earned cheers. He fought gamely against the tide of winner.
Federer is cornered by the on-court interviewer before he can make his escape.
He thought the match was "good quality" and reveals that he has treated Stefan Edberg to a little practice hit for his 49th birthday today.
"The day's not over yet, the shops are still open in Melbourne," he adds hurriedly. Time to flex the plastic Roger.
Bish, bash, bosh.
Federer to 40-0 and the Rod Laver crowd are cheering all the way up to his ball toss as he prepares for the first of three match points.
Lu crashes away a winner as Federer comes to the net to stick a slight spanner in the spokes, but the next point, and the match, are all Fed's.
You could feel it brewing.
Roger Federer takes a wrecking ball to Yen-Hsun Lu's serve, splattering winners to all corners and pulling the Taiwanese all out of shape to snatch away the game to love.
He will serve for a straight-sets win next.
Roger Federer dusts off another service game to love in a shade over a minute. Expect a big haul at the Lu tee-off next - his last chance before they head into the shoot-out of a tie-break.
First to five and Yen-Hsun Lu is still alive and kicking in the set. Theoretically Roger Fededer will serve to stay in the set next. In reality he has never looked in danger after saving those two break points early in the third.
While you struggle to start your car engine back in chilly Blighty, the Federer serve is still purring in the Melbourne warmth.
It doesn't look like Federer is going to lose this set. The only question is whether he can summon everything together to actually go and actively win it.
Is this the beginning of the end?
Roger Federer puts away the volley to get Lu in a headlock at deuce and tightens his grip with a casual overhead swat.
Break point and Federer is a whisker wide. Another into the net from the Swiss. Lu battles on to advantage and then pings a forehand crosscourt into an unguarded corner.
A chance gone for Federer to put the set and match to bed.
On a day of plenty of shocks in the women's draw, seventh seed Eugenie Bouchard of Canada is safely through to the second round with a 6-2 6-4 win over Anna-Lena Friedsam of Germany.
Roger Federer carves through another service game with the efficiency of a sushi chef.
By the time you have looked up from your pack of wine gums he is already taking another paddle out of the cellophane wrapper and preparing to receive.
Roger Federer might be getting in some net-rush chip-and-charge practice with one eye on future rounds, but he may partly being forced into it by Yen-Hsun Lu.
Because Lu can slug.
The world number 47 camps on the baseline and wallops within millimetres of the lines. The final clout is a beauty, whizzing down the line to keep the third set on serve.
After a rare glimpse of soft underbelly in the previous game, Roger Federer's serve is righted and rolls through Lu like a tank.
The first two sets have followed a distinct template.
1. Lu starts well, suggests he might take Federer into tie-break territory.
2. Federer suddenly finds another gear to snatch Lu's serve and then lock it up tight.
This one is staying true to the trend. Lu holds again. Will the prospect of some overtime, get Federer to knuckle down once again?
Australia cricket captain Steve Smith is in the posh seats today, bringing a nice bit of neckwear to the open-collar president's box.
Yen-Hsun Lu is serving up some entertainment for the VIPs, twice taking Federer to break point, but unable to edge over the finishline.
This is some high-grade entertainment.
Roger Federer presses to the net twice in succession. On each occasion Yen-Hsun Lu out-thinks and finds a way around him. 40-0 to the man from Chinese Taipei.
Federer is forced to stay in the backcourt as Lu tugs him left and right in the next point, but produces a steaming winner, almost taking the ball-boy's eyebrows off as he goes round the net post with a forehand.
Lu sees it out, but that was possibly the most fun game in the match so far.
Well, well, well.
A Roger Federer double-fault gives Lu 15-40 and two break-back points. The Rod Laver crowd whisper to each other like homicide-scene rubber-neckers.
They needn't have been concerned. Federer finds the service sweetspot, cranking down some power and putting banana curve on the ball. Back to deuce.
And then Lu plants a backhand wide, Hawk-Eye confirms his miss, and the set is cooked.
A gossamer touch from Roger Federer as he teases a tantalising drop-shot over the net and the back-spin kills it doornail dead. The crowd whoop. Lu puffs his cheeks.
Lu battles hard, saving two break points, but Federer has added some of coach Edberg's hustle into his armoury. The Swiss is crawling all over the front court, cutting off angles and volleying away winners.
The third sticks and Federer serves for the set next.
Plain sailing and the view from the bridge is pretty good for captain Roger Federer.
A hold to love and the home port is almost in view.
Yen-Hsun Lu paints himself into a 0-40 corner and, despite one fizzing forehand cutting off a Federer net charge, there is no way out from there.
Roger boxes off the escape route and edges ahead in the second. And there has been very impression made on his serve so far in this match.
"To make the shorts shorter is something that I like. I feel more comfortable this way. We make it shorter already last year, and this year a little bit more. I like. I feel more comfortable here, more fresh." Rafael Nadal's thigh-revealing kit is the talk of Melbourne.
"I guess I'm maturing in my old age. Yeah, I'm definitely a late-bloomer. I guess mentally-wise as well, late-bloomer in that department as well." Marinko Matosevic insists he is no longer the 'Mad Dog' ahead of his second-round meeting with Andy Murray.
"I think this is very sort of like philosophical question." Tomas Berdych is asked where he feels he is after a straight-sets win.
"I was talking to my coach and I told him I actually did feel like I won the Australian Open." Australia's Jarmila Gajdosova finally gets a victory at her home Slam at the 10th time of asking.
The shot of the game from Yen-Hsun Lu, a delicious, cascading lob over the top of Roger Federer that splashes down just inside the baseline.
It is all a little incidental though as Federer buries the memory of it beneath four rattled-off points.
Barely a minute on the clock in that game.
Yen-Hsun Lu seems to have got his talons into this set more securely than the last.
He holds again and is clinging to Federer like gum on the sole of his sneaker.
Hawk-Eye get to show off their fancy new graphics - ones that keep the players in the picture as the ball's path is virtually replayed - but it cannot help out Yen-Hsun Lu as his forehand is called long on the opening point.
A 50-pointer for your I-Spy tennis book. A Federer smash wastefully buried into the middle of the net. But nothing for that, as the Swiss gets feline at the net- cat-like reflexes to pat away the final point of the game on the volley.
Former British number one Anne Keothavong: So many colourful outfits on day one of the Australian Open. Fed's top is pretty much same colour as the ball. Fair?
Yen-Hsun Lu is still stubbornly sticking his heels in to prevent this one descending into exhibition territory. After a much-needed sit-down and sip of drink, he holds in the first game of the second set.
GB Davis Cup captain on BBC Radio 5 live sports extra
"The last rally was Roger playing at his best with the sliced backhand, early backhand across court, crunched, for the winner. He can do pretty much everything."
Thirty-two minutes of masterful tennis and wife Mirka, up in the players' box, is among those to clap Roger Federer home to his courtside stool.
The usual silver-service standard from Federer. Tennis with hospital corners and a mint on the pillow.
In an unusually tight spot at 40-0 down, Roger Federer draws some groans of pleasure from the Rod Laver Arena with a sublime flicked backhand winner off Yen-Hsun Lu's serve.
It is not enough to win the game, but a little reminder that he will serve for the set next.
Just two points lost so far on serve from Roger Federer. He is stroking down some sublime power from the ball toss.
Like a man falling down a ravine, grabbing a branch on his way to the bottom, Yen-Hsun Lu takes a game with some gutsy hitting.
It will be a tougher task to throw this set into reverse and change the momentum on this one.
The Fed Express is rolling now. Another service game is wrapped up at the speed of the Tokyo-Kyoto special, for the loss of just one point, and it is getting warm in the engine-room.
Have you seen Force 10 from Navarone?
I think Yen-Hsun Lu's defences have just gone the way of that dam.
After creaking, but holding out, Lu is broken to love. It had been coming.
A couple of ladies make their way to their seats, weighed down by a handbag over each arm. If you are double-parked with baggage it is time to think about a nice sensible rucksack surely.
They have barely touched buttock to seat in the time it takes Federer to hold to love. That one took less than a minute.
Oooh. A backhand down the line, as saucy as a seaside postcard, from Roger Federer brings up a break point at 30-40.
The line judge had to sway right to avoid the rubber bullet as the Fed's stroke suddenly got big on him.
We'll miss those bits of nonchalant brilliance when he is gone. Lu probably wouldn't miss it for the rest of this match though. He uncorks a pearler of a forehand down the line to see of the danger, but is being stretched all over the shop.
But Roger Federer could wipe down with a napkin.
A minimum of effort expended as he bags up his opening service game to 15.
Federer loses the first point, but then feathers the accelerator to move to 40-15 with a chip and charge to the net, setting Lu the challenge of passing him and watching his opponent come up well short.
Lu, a quarter-finalist at Wimbledon five years ago, shows some pluck though and sees off those two break points. And another two from deuce to dodge the early break.
Yen-Hsun Lu, ranked 47th in the world, will tee us off.
Roger Federer, glowing in fluorescent yellow, won the toss and chose to receive.
Those are the sort of numbers that might usually add up to pipe, slippers and retirement.
But Roger Federer is still doing his soft-shoe shuffle around the world's biggest tennis stages.
This morning it is Yen-Hsun Lu who is on the opposite end of the court as his royal Swissness gets his Australian Open campaign underway on Rod Laver Arena.
A pretty full house to catch Federer while they still can and the players are knocking up.
Thirty-three years on the clock.
Four kids at home.
17 Grand Slam titles on the mantelpiece.
(I'm presuming a man who has won more than £54m in prizemoney has a pretty big fireplace)