Leylah Fernandez pushes a backhand cross-court and out of the reach of Katie Boulter, but she can't get the hold over the line just yet as she double faults. 40-30.

Mel South
Former British player on BBC TV

Really good body language from Katie Boulter out here.

She is orchestrating the crowd and getting the whole team behind her here.

Brilliant stuff from Katie Boulter, who wrongfoots Leylah Fernandez and sends down a forehand winner to hold.

Katie Boulter, after a couple of misses, claws her way back to 30-30 after sending Leylah Fernandez one way, then the other.

Fernandez is known for her speed, but she can't keep up and eventually the ball settles at the net.

Katie Boulter restores her lead as Leylah Fernandez, trying to find the line, goes for too much power and misses.

The question now is, can the British number one back it up this time?

Image source, Getty Images

But the Canadian lofts the ball long on the next point and it's another break point for Katie Boulter, who is really pumped up as she lets out a roar and clenches her first.

A big, big second serve comes up clutch for Leylah Fernandez.

Here we go again. Break point Boulter.

A couple more unforced errors from Katie Boulter, but she pounces as Leylah Fernandez comes to the net and after a few failed pass attempts, the British number one finally fires into an empty court. Deuce.

Lovely from Katie Boulter, who sends Leylah Fernandez long with a booming forehand before switching up the pace with a delicate looping drop shot.

The Briton can't make the most of her 0-30 lead, slicing into the net.

Mel South
Former British player on BBC TV

Leylah Fernandez wants to make it quite a physical battle.

That's where she likes to play her tennis.

Leylah Fernandez does well with the return and works her way back into the rally before Katie Boulter, going for power, thunders the ball into the net.

We're back level.

A messy slice from Katie Boulter hands her opponent the chance to break.

A deep return from Leylah Fernandez catches Katie Boulter off guard and she can't adjust her feet quick enough to find the court. Deuce.

Two long hits from Katie Boulter hand Leylah Fernandez a half chance, but the Canadian can't take the pace off Boulter's next serve and the ball falls short at the net. 15-30.

Mel South
Former British player on BBC TV

Leylah Fernandez said she is really excited to come out here and defend the title but it does come with pressure.

A huge yell and a a fist pump tells you all you need to know. Katie Boulter takes an early lead as Leylah Fernandez struggles on serve.

The rest of the British team enjoyed that and they're all on their feet, cheering on their number one.

Image source, Getty Images

Another break point for Katie Boulter after Leylah Fernandez, after forcing the British number one out wide, misses the baseline by a fair bit with the forehand.

A clenched fist from Katie Boulter, who celebrates after dominating the point and finishing it off at the net.

The next serve is too strong for the Briton, though. 30-30.

Hands up high in apology from Katie Boulter as the ball clinches the net and trickles over, catching out Leylah Fernandez who was in control of that point.

The Canadian plants the next one into the fence and Boulter holds.