Here's Wozzy. The Danish world number six legs it quickly out of the changing room, maybe to indicate to Watson that she is OK and ready to fight back and win this in two sets.

Wozniacki grimaces a little as she kicks off the game, but that disappears as she moves within a point of the hold.

A big first serve out wide can't be returned by Watson and the Dane clinches it.

Wozniacki calls the medical timeout and disappears into the changing room for some more, shall we say, private treatment.

Watson munches on a banana while she waits. The sun even comes out while she does it. Very pleasant.

Caroline Wozniacki, who has been struggling with an abdominal injury, calls on the trainer at the changeover. Is the injury that bad or is it a momentum killer? Definitely the former, and if the latter is a consequence then it is a bonus.

The Dane lies out on a mat on the sideline, having her stomach gently prodded.

Heather Watson hops and skips back to her seat. That's easy to do when you've just rattled off four games on the bounce.

Watson ramps up the pressure on Wozniacki, blasting a first serve down the middle for 40-15, then is millimetres away from making it a pair of aces.

She is not deterred though, hammering down a second serve which the Dane can't get back to safety.

Watson lets Wozniacki off the hook with that first break point, smacking a second serve past the baseline, then wastes a second chance in deuce.

But the Brit is not going away quietly. Another break point arrives... this time it is third time lucky! Watson goes toe-to-toe with the two-time Grand Slam finalist on the baseline, cracking a cross-court forehand winner out of Wozniacki's reach.

Image source, AFP

Oh hello. Is Wozniacki wobbling? After losing her serve to love in the previous game, the Dane falls 30-0 behind and looks to be in some discomfort.

Former British number one Sam Smith, speaking from our TV comms box, reckons it could be an abdominal injury.

Wozniacki stretches out between serves, manages to get a couple of points on the board, but still faces a break point at 40-30...

Image source, AFP

After battling back to deuce, Watson can't use her momentum to dash over the line. The Guernsey girl has to save two break points, firstly with a cross-court winner and then with a neat volley after a well-constructed point.

Can Watson crawl to safety this time? She can! The home crowd cheer heartily as the British number three digs to deep to keep her serve.

It has turned gloomy again for Watson. Wozniacki wears the British number three down as she continues to bat back from the baseline, Watson flying a return long.

Two break points for Wozniacki. More breaks here than at your local A&E ward.

Watson fights them off, cracking a brilliant backhand down the line for deuce...

Watson squints as a chink of light bursts into her side of the court. No, the sun hasn't broken through the light cloud in Eastbourne.

She has three break points...

Wozniacki tees that up with a weak backhand into the net, then goes long with a forehand.

Watson's serve is juddering at 30-30, then becomes embroiled in a baseline scrap with the Dane.

Both players jab away patiently before Wozniacki lands a knockout blow with a forehand down the line which leaves Watson rooted.

Break point...

And Wozniacki takes it when Watson goes long with a forehand.

Image source, AFP

Back to the on-court action at Eastbourne...

Nothing too dramatic in the opening moments of the second set. Watson and Wozniacki trade comfortable holds.

This was the moment when Konta sustained her back injury - her pain is all too clear to see.

Johanna Konta says will assess her Wimbledon prospects after a day of rest.

The British number one has pulled out of her semi-final because of a back injury.

"The most important thing for me is to look after my health in general," she said.

"We made the decision based on the fact I'm still quite sore through my thoracic spine. Next week is Wimbledon but I make decisions for my health.

"I didn't sleep too well but I heard that's normal. It just didn't feel quite right. The most important thing is I rest well for the next 24 hours and then we'll see."

While Watson and Wozniacki both have a glug of water and a whisper of advice from their coaches, let's just check on Jo Konta.

We've just seen pictures of the British number one, who has pulled out of her semi-final with a back injury (in case you're just joining us), in the Eastbourne media centre.

The good news is that a) she is smiling and b) she seems to be walking without any pain.

Here's what she has told BBC Sport...

...and she takes it.

Watson stays in a baseline rally with the former number one on set point, but then slashes into the net.

Wozniacki is a set away from the Eastbourne final.

Encouraging start for Watson as she goes on the front foot, powering a forehand deep which Wozniacki can't return.

But 0-15 becomes 15-15 as she overcooks another forehand, Wozzy edging ahead after challenging a wrong line call. Very wrong it turns out.

A wonderful winner from a scrambling Wozniacki, a stretching forehand down the line, brings up set point...

Ah.

Two more break points for Wozniacki as she looks to instantly grab that double break back.

Wozniacki is a supreme athlete, but even she can't get to a drop shot from the Briton.. 40-30.

But the Dane takes the second opportunity as Watson blinks first after a baseline rally. A forehand into the tramlines leaves Wozniacki serving for the set.

Wozniacki is finding her rhythm quicker than a Deep South blues band. The Dane moves into a 30-0 lead as she has Watson scampering along the baseline, the Brit reaching a deep backhand but only able to hit it long.

Hang on... don't write Watson off yet. The British number three whacks a beautiful cross-court forehand winner for 30-30, then Wozzy goes long to bring up a break point for Watson.

And the Danish world number six gifts her the game by volleying into the net from close range.

One down, one to go...

Image source, Reuters

You might be thinking that you have not heard much about Heather Watson recently. That's because she hasn't been winning much.

The Guernsey girl had only managed five Tour wins this year before Eastbourne, but has found her form on the South Coast seaside town.

Ah... she had found her form. It seems to have deserted her today. Caroline Wozniacki earns back-to-back breaks as she pounces on Watson's serve with some heavy groundstrokes.

Plenty of polite applause from the Eastbourne crowd as Watson dumps a double-backhand half volley down the line for 30-30 on Wozniacki's serve.

Chance? Watson senses one. She goes for another winner down the line after a patient rally, this time crashing the ball into the net.

Wozniacki doesn't need a second invitation, wrapping up the game to back up her break.