Having bowled 20 overs in approximately 67 minutes, the players have more than deserved a drink.

50 for Lizelle Leepublished at 20 overs

20 overs

SA 80-0

Nine overs of pace in tandem, nine overs of medium pace in tandem, England now have their two front-line spinners operating in tandem as Laura Marsh replaces Elwiss at the Cromwell Road End.

It's a better over for South Africa as Marsh concedes two boundaries through backward point - both of which young Ecclestone should probably have stopped.

Charlotte Edwards
Ex-England captain on BBC Test Match Special

Bringing on Ecclestone is a great move by England, she's probably one of the hardest England bowlers to get after.

Left-arm spin o'clock! Teenager Sophie Ecclestone into the attack, with mid-on up it tantalises and teases Lee with the prospect of hitting across the line and against the spin. A tidy first over, no boundaries once again.

England were 100-1 at this stage. I'd also be prepared to bet a few pennies that SA would be behind on Duckworth-Lewis too (not that it's going to rain...).

England keep faith with their medium-pacers as Elwiss begins her fifth over. The tourists plunder five singles.

While they retain 10 wickets in hand, South Africa's required run rate is now in excess of eight an over.

Here's something for any South Africa fans tollowing this to cheer - SA's first six of the innings.

Wolvaardt dropped on 17published at 17 overs

17 overs

SA 61-0

Agony! Wolvaardt tries to loft the ball over mid-on, the tall teenager Sophie Ecclestone steps back and gets to hands to it... but can;t hold on as the ball drops in front of her.

Reprieved, Wolvaardt guides Sciver for four through mid-wicket.

Lee is beaten outside off stump by Elwiss. England's bowlers and fielders are combining well here to keep the squeeze on the visitors.

Charlotte Edwards
Ex-England captain on BBC Test Match Special

This is such a big total to chase down in the women's game - South Africa do need to show more intent to score.

Wolvaardt's struggling to rotate the strike and that is just putting the pressure on them.

South Africa bring up the fifty stand early in the 15th over - something England achieved in the ninth. I've not seen one of those "worm" graphics for this game, but fair to say the green worm is dawdling behind the blue worm in these early stages. A good bit of running allows Wolvaardt a two off the edge to third man.

I wonder when England might turn to spin?

Charlotte Edwards
Ex-England captain on BBC Test Match Special

She's the sweetest timer of a cricket ball I've seen in a long time.

Despite the lack of run support from her batting partner, Lizelle Lee can make batting look easy at times - with virtually no backlift, she lifts Elwiss over the leg side for the first six of the innings.

Lee effortlessly lifts Sciver for a one-bounce four through mid-wicket, but is denied back-to-back boundaries by a good pick up and throw by Laura Marsh who is patrolling the third man boundary. She'll have plenty of spin to bowl in the not-too-distant future.

Charlotte Edwards
Ex-England captain on BBC Test Match Special

I thought that was Jenny Gunn there making that stop before I realised she isn't playing - she used to stick out those long arms and make good stops like Anya just did.

South Africa need to rotate the strike as England are squeezing them at the moment.

Slightly better from the Proteas, who are starting to pick up the odd single, but they're denied what looked a certain boundary as Anya Shrubsole slides to make a good one-handed stop at mid-off.

It's a double change in the bowling, with the TMS crew starting to feel the cold, as Natalie Sciver replaces Shrubsole at the Sea End. Just a Lee single is added to the score - as Charlotte points out on TMS, Wolvaardt is having trouble beating the infield.

The required rate at this early stage is 7.66 - they're going at less than half that at the moment.

Charlotte Edwards
Ex-England captain on BBC Test Match Special

I've been disappointed with South Africa's approach so far. I know Wolvaardt's a young player, and she hits the ball beautifully, but she hits too many balls at fielders. She needs to learn how to rotate the strike, particularly when playing with someone like Lizelle Lee who is more of a power hitter.

Elwiss - who, like Sarah Taylor, is a Sussex player - completes a tidy first over.

Lee has made her ground and we will continue.

England turn to their third seamer for the last over of the first 10 - but it's not Nat Sciver, it's Georgie Elwiss. The medium-pacer's first ball is guided to Brunt at cover by Wolvaardt, Sarah Taylor whips the bails off, they're going to check upstairs...