That's better - thunder in the wrists of Kyle Edmund as he hammers down a couple of corking forehands to make it 40-15.

Tomas Berdych manages to engage the 13th seed and looks to play to his backhand, before slapping a reverse winner.

Edmund's on the scoreboard, though. Forehand winner, all in the eyes.

Right, Kyle, time to get going.

Edmund whistles down a serve to get on the board, but is furious when his next effort his called for let.

The British number one then whips a passing forehand into the tramline.

He's not quite clicked into gear yet.

Tomas Berdych has come out punching.

Wham, bam, storming into a Grand Slam... the Czech quickly jabs his way to 40-0 and then wraps up his service game to love.

Tomas Berdych only needs one!

Not the start the British number one had in mind. Berdych looking lively.

Make that two break points...

Kyle Edmund's wayward forehand is superbly caught by a member of the crowd, biggest cheer of the day.

But the 13th seed is in trouble.

Feisty return from Tomas Berdych and that forces the British number one to drag a backhand into the tramlines.

Spot of pressure building for Kyle Edmund now as he pokes long from deep behind the baseline.

15-30.

Quick hold of serve for Tomas Berdych, over to you Kyle Edmund...

Image source, Getty Images

Dan Evans is two sets up against fellow qualifier Tatsuma Ito of Japan, taking the first 7-5 before cruising the second 6-1, and now he leads 2-1 in the third.

Ito has been having treatment on an upper leg problem.

It's Tomas Berdych to serve first after Kyle Edmund elected to receive.

Berdych's draped in some sort of camouflage print, just looks like a set of limbs running around out there...

Image source, Getty Images

This time last year, Kyle Edmund arrived in Melbourne ranked just inside the top 50 and with few people talking about him as a potential challenger for the biggest titles.

He left as a Grand Slam semi-finalist.

Just as importantly, the 24-year-old followed up that run with a fine season overall, including winning his first ATP Tour title in Antwerp.

Now the British number one must deal with the pressure of defending a huge amount of ranking points.

Kyle Edmund missed last week's Sydney International with a knee injury but the 24-year-old Yorkshireman insists he has no fitness concerns going into the first Grand Slam of the year.

Czech Berdych, 33, struggled for fitness last season, but showed signs of his recovery by reaching the Qatar Open final last week.

The two-time semi-finalist also has a formidable record in Melbourne, having reached at least the quarter-finals in seven of the past eight years.

"It is a tough draw to play Tomas who was a consistent top-10 player," Edmund said.

"It is a similar feel to drawing Kevin Anderson in the first round last year, but I was in a good place and managed to come through in the fifth set.

"I've been feeling good on the practice courts this week and missing Sydney has been positive for my fitness and my game."

Image source, PA

We're going to re-join the fun with British number one Kyle Edmund gearing up for a tricky opening test against Tomas Berdych.

As the 13th seed, Edmund would have hoped for a slightly kinder draw than former top-10 stalwart Berdych, whose ranking has dropped to 57 after back problems saw him miss the second half of last season.

Edmund would love another run like the one that took him to the semi-final last year.

"As soon as you come you think of what happened last year," said Edmund. "It goes very quickly, a year on, coming back here and starting again."

Image source, Reuters

Image source, EPA

Some of you might be waking up on a cold, wet, drizzly morning in the UK, but over in Australia things are already hotting up both on and off the court.

Temperatures are soaring, as is new British number two Katie Boulter after knocking out Ekaterina Makarova earlier on her Melbourne Park main-draw debut.

Heather Watson and Harriet Dart both crashed out at the first hurdle to tough opposition, but a whole host of Brits are still to come (including some chap named Andy Murray...)

Image source, Reuters

Well, two Brits have already tumbled on day one after defeats for Harriet Dart and Heather Watson, but Katie Boulter becomes the first to progress to the next round in Melbourne with a superb win over Ekaterina Makarova.

We're going to leave things there for the time being, but we'll be back with you later on today as British number one Kyle Edmund takes to the court, followed by Dan Evans, Cameron Norrie and, of course, Andy Murray.

Catch you then...

David Law
BBC Radio 5 live tennis commentator at Melbourne Park

She has real power. She has the raw game to hurt the top players. And that can give you a real chance. If you consider what a seasoned player Ekaterina Makarova is, that is great credit to Boulter. She handled everything - the conditions, the nerves - it is a huge step in her career.

Well, well, well, Katie Boulter becomes the answer to Jonathan's tie-break quiz question... and reaches the second round of a Gram Slam for just the second time in her career.

Brilliant.

Jonathan Jurejko
BBC Sport at Melbourne Park

What. A. Win. Katie Boulter arrives at the Australian Open in style.

Ekaterina Makarova is a former semi-finalist here and reached eight in the world.

The 22-year-old proves she can mix it with those who have been there and done it.

The Brit-supporting court 12 erupts as Boulter seals victory with another ferocious forehand.

A broad beam breaks out over her face as she takes the plaudits.

Jill Craybas
Former world number 39 on BBC Radio 5 live sports extra

An unbelievable performance, there were moments that were tough but she never backed down.

Fiery groundstrokes from Boulter force Makarova long, and she follows up with a hammer of an ace!

Three match points...