Replacement - De Klerk onpublished at 43 mins
England 12-6 South Africa
There is one of those early changes - Faf de Klerk is on at scrum-half for the champs.
England's World Cup dream ends in heartbreaking 16-15 semi-final defeat in Paris
Handre Pollard's 77th-minute penalty snatches victory at Stade de France
Converted RG Snyman try cut England's lead to 15-13 with 11 minutes left
Owen Farrell drop-goal had put England nine ahead in second half in Paris
England were seeking revenge for defeat in 2019 World Cup final
South Africa will play New Zealand in next Saturday's final
Tom Rostance
England 12-6 South Africa
There is one of those early changes - Faf de Klerk is on at scrum-half for the champs.
England 12-6 South Africa
Good from Joe Marchant on the touchline and he forces a penalty, Owen Farrell can kick it right down into a dangerous position.
England 12-6 South Africa
Courtney Lawes is limping already after his first contact of the half, we'll keep an eye on him. England win the ball back from a very poor Cobus Reinach box kick...
England 12-6 South Africa
South Africa made key, early changes at the start of the second half against France. They've already switched their fly-half, of course, will we see more early on?
South Africa get us up and running - a huge 40 minutes...
HT: England 12-6 South Africa
South Africa are out on the field as England sit in the dressing room, taking a moment.
HT: England 12-6 South Africa
That's a very good point.
Last weekend's game was one for the ages. Has it emptied the South African tanks?
HT: England 12-6 South Africa
Paul Grayson
Former England fly-half on BBC Radio 5 Live
This is page one of wet-weather rugby.
It's implementation, accuracy and focus that we haven't seen very often from this England team.
But given the opportunity to step up against South Africa with wet-weather rugby they have been absolutely superb. I think we have also seen just how much South Africa had to put in to beat France here last week.
HT: England 12-6 South Africa
South Africa have never lost a knock-out game at the Stade de France, winning their 1999 quarter-final, 2007 semi-final and final, and last weekend’s quarter-final.
There's always a first time though...
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Dare we believe? But, I fear this may be like four years ago, playing the semi-final like it's the final, only to go and lose to another great All Blacks side!
Nick
HT: England 12-6 South Africa
Unlikely, but...
If the scores are tied after 80 minutes, we will have extra time of two 10-minute halves.If there is still no winner, the game will go to sudden death, in which whoever scores the first points in the 10 allotted minutes wins.
Should we still be unable to separate the two sides, the game will finally go to a kicking competition.
Only five players from each side who were on the pitch at the end of the match can take a kick. If both sides are successful with their five attempts, this will continue on a sudden death basis until someone misses.
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Dennis: Maro Itoje is so impeccable for ENGLAND!
Andrew: England will struggle to compete better that they did in that first-half, South Africa would struggle to play any worse. Yet there’s only 6 points in it.
HT: England 12-6 South Africa
Mike Henson
BBC Sport at Stade de France
You know who else led 12-6 at half-time?
South Africa in the Rugby World Cup final four years ago in Yokohama.
It worked out alright for them.
HT: England 12-6 South Africa
Can England see this through and reach a fifth World Cup final?
Thumbs up for yes, down for no...
HT: England 12-6 South Africa
Matt Dawson
Former England scrum-half on BBC Radio 5 Live
England are excited about what they have just done, South Africa are in a tailspin.
South Africa need a bit of magic, but from England what a brilliant performance - awesome.
England 12-6 South Africa
Alex Mitchell slams the ball out and England LEAD at half-time...
England 12-6 South Africa
Matt Dawson
Former England scrum-half on BBC Radio 5 Live
A huge 40 seconds coming up, it is now onto the next job. Go through a couple of phases and get it into the stands.
Owen Farrell
It's not easy, but that's metronomic from Owen Farrell! What a kick.
Tom Curry is back on, by the way.
England 9-6 South Africa
Cheslin Kolbe is taken out under a high ball and the whistle goes - but it's a penalty to England! Big call, and Owen Farrell has the chance, albeit from a long way out.
England 9-6 South Africa
Paul Grayson
Former England fly-half on BBC Radio 5 Live
It's been a different level of physicality from England tonight. They have been absolutely superb in those contact areas and they have been monstering South Africa.
England 9-6 South Africa
England have never led South Africa at half-time in a Rugby World Cup match...