Dean stars with four wickets; Wong takes three wickets on debut
Dunkley hits her first ODI century - off 87 balls
Lamb and Beaumont put on 127 for first wicket
England now lead multi-format series 6-2
Highlights on BBC iPlayer from 07:00 BST on Saturday
Luus c Bell b Dean 4 (SA 111-4)
Really soft. The South Africa skipper has gone and this could fall apart quickly.
Sune Luus sweeps Charlie Dean, but only gets a top edge that falls into the hands of Lauren Bell at short fine leg. Dean has 3-19. What a bowler she is.
Daniel Norcross
BBC Test Match Special
Image source, Getty ImagesThere is a little bit of a swagger in Issy Wong's step as she gets ready to bowl the next ball.
Target 338
Marizanne Kapp is the new batter. This pair will have to do the bulk of the work if South Africa are to even get close.
Georgia Elwiss
England all-rounder on BBC Test Match Special
It was up there for a while but lands in the safe hands of Lauren Bell. That is the wicket England were looking for.
Goodall c Bell b Wong 16 (SA 107-3)
Easy as that, Issy Wong has her first ODI wicket. Lara Goodall never looked comfortable against the extra pace and one ball after edging through the vacant slip region, she cloths to Lauren Bell at mid-on. England are making inroads now.
Daniel Norcross
BBC Test Match Special
It's the perfect game for Issy Wong to be playing in. She's permanently smiling it seems to me.
Issy Wong is back into the attack. She had a hand in England's first wicket, taking the catch that removed Laura Wolvaardt.
Target 338
A cricket team from France not to be confused with a team that plays French cricket. Goodall gets down low to sweep Dean fine for three. The left-hander has looked in good order.
Daniel Norcross
BBC Test Match Special
The French cricket team are having an absolute blast!
Target 338
Luus has a long ponytail that drapes down her back as she waits for Ecclestone, who has similarly long locks. The skipper drives through the covers for a single. It just feels like calm has been restored, like England have things under control.
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Target 338
South Africa skipper Sune Luus is the new arrival, watching on as Goodall nudges fine for four.
Steyn lbw b Dean 28 (SA 92-2)
OK, it was only clipping the top of leg stump, but the outcome is the same. Andrie Steyn is leg before to Charlie Dean, missing a sweep at a straight one. Dean has taken two in two overs and England are back in charge of this game.
Daniel Norcross
BBC Test Match Special
Steyn was looking to play that ball aggressively but she missed. The finger went up quickly. That was one of the quickest decisions I've seen.
SA 92-2
You're being optimistic here, Andrie Steyn. This must be stone dead.
Ecclestone is bowling over the wicket to Goodall. She unties and reties her long hair and has a chat with Lauren Bell. When Ecclestone loses her line, Goodall sweeps fine for four. Not in England's plan.
Lara Goodall, a compact left-hander, is the new arrival. Dean, the offie, will enjoy having the leftie to target. England will look to squeeze, rattle through a few overs.
Melissa Story
BBC Test Match Special
It seemed like it was the right option for Wolvaardt there. She got the bottom half of her bat. We felt as if it was. Perhaps she didn't put enough behind it. It was the perfect catching height for Issy Wong.
Wolvaardt c Wong b Dean 55 (SA 87-1)
There's the breakthrough England needed. The spinners have changed the game and it's Charlie Dean who has struck. Laura Wolvaardt is trying to hit down the ground, but can only chip to Issy Wong at mid-on. Big moment.
Target 338
Ecclestone is like a metronome. An action you could set your watch to. She's conceded eight runs in two overs. Miserly in the context.