Katie Boulter and Laura Siegmund are out on court in Malaga, the second singles match will get under way after the coin toss and a brief warm-up.

Boulter calls heads - but it's tails. Siegmund chooses to receive serve first.

Great Britain's Emma Raducanu speaking after victory over Germany's Jule Niemeier: "I think I played some really good tennis today. Playing Jule on an indoor hard court isn't easy. It's a game of holding serve and trying to get a break where you can.

"I haven't obviously played a match in a long time so these are small sharpness things that come the more matches I play. I'm very happy with how I regrouped and how I managed to close out that last game."

On taking energy from the crowd during the match: "We had a lot of support so thanks to everyone over here. Obviously it helps a lot having so much support. The team, each and every one of us, we are all playing our role. We wouldn't be here without every member.

"Very proud of myself and also very proud of every team member playing their role as best as possible and sacrificing certain things.

"Everyone, especially Anne [Keothavong] leading us into the finals and we are starting at 1-0 up."

Image source, Getty Images

Jonathan Jurejko
BBC Sport in Malaga

Image source, BBC Sport

There was a sombre mood around Malaga earlier this week after the heavy rain and flash flooding which forced the opening day of the Billie Jean King Cup to be postponed.

Thankfully the rain stopped on Wednesday afternoon and the water levels had reduced significantly by yesterday.

But there was amazement in the Andalusian city this morning, among locals and tourists alike, when slurry water started rapidly flowing down the usually bone dry Guadalmedina river.

It was like someone had just turned on the tap.

Locals said it happened because a dam in the mountains north of the city - Presa del Limonero - had been opened.

The controlled measure was done to alleviate the dangerous levels of water which had built up after the second Dana weather system that hit the southern part Spain this week.

Image source, BBC Sport

Image source, Getty Images

British number one Katie Boulter leads the British team for the Billie Jean King Cup finals.

Boulter, who could make appear in her 13th tie, has a 12-4 win record in BJK Cup matches.

The 28-year-old won the biggest title of her career earlier this season at the WTA 500 event in San Diego and she followed that up with another title at the Nottingham Open.

She has also ended the 2024 season on a strong note, finishing runner-up at the Hong Kong Open.

Despite falling to Diana Shnaider in the final, Boulter moved into the world's top 25 for the first time.

Jonathan Jurejko
BBC Sport in Malaga

Emma Raducanu celebrated her 22nd birthday on Wednesday.

So in time-honoured tradition, she is made to feel slightly embarrassed by a rendition of 'Happy Birthday'.

We've all been there. But probably not with a brass band playing the tune and a few thousands heartily singing along.

Even the cuddly BJK Cup mascot joins in!

Now we look ahead to the second match of the evening - GB's Katie Boulter v Germany's Laura Siegmund.

If Boulter wins, GB are through to the quarter-finals. Should Siegmund triumph, we will have a doubles decider.

That match is scheduled to get under way at 19.50 GMT - so if you want to grab a cuppa between matches, you need to get a shift on.

What a return that is for Emma Raducanu after almost two months out injured.

She said earlier this week that she felt "really fit" and that win proves it.

The 22-year-old has played just 34 matches this year after returning from the wrist and ankle surgeries which ruled her out of most of last season.

But she has starred for her country, first at the Billie Jean King Cup qualifiers in April and again this evening in Malaga.

Lucie Ahl
Former British number one

A great effort there from Emma Raducanu.

Started the match with a few nerves but then she settled in.

Understandably, she felt the pressure at the end trying to close it out but kept here nerve brilliantly.

Fantastic support for team GB and a great start for them.

I think relief there for Raducanu.

That's better. Can Emma Raducanu get this at the sixth time of asking?

How has she missed that? Emma Raducanu has worked hard to send Jule Niemeier wide but she goes long with the whole court to aim for.

A fantastic rally from Emma Raducanu, who dictates play by sending Jule Niemeier one way, then the other until the German misses.

Match point number five.

Deary me, another double fault. 30-30.

There's nothing Jule Niemeier can do to return that booming serve from Emma Raducanu. 30-15.

Jule Niemeier has found a new lease of life. A delicate little drop shot catches out Emma Raducanu and pulls the German level at 15-15.

Lucie Ahl
Former British number one

Every player knows that it is difficult to get over the line, that extra bit of pressure you feel.

You get a little bit tighter and feel tension.

That was the issue for Emma Raducanu, double faults came into play. You start to maybe overthink.

Four match points have come and gone for Emma Raducanu. Can she serve out the win at the second time of asking?

The pressure is on!

Jule Niemeier steps it up a gear, firing down a forehand that Emma Raducanu pushes into the net.

And there's the hold for the German. On we go...

Image source, Getty Images

Jule Niemeier is clinging on for dear life. Emma Raducanu goes for the lob, but she's missed the baseline by a couple of metres there.

Back to deuce.

Match point number four for Emma Raducanu as Jule Niemeier double-faults.

Can she get it this time?