Eng 37-3published at 7.2 overs
England's players look frazzled from that punishing time in the field.
Ben Stokes attempts to reignite this chase by advancing down the pitch and pulling Marco Jansen for four. His first runs in this game.
England thrashed by 229 runs - their heaviest ODI defeat
Only Wood (43*) and Atkinson (35) show any resistance
SA post 399-7 after sublime 109 from Klaasen and 75 not out from Jansen
Hendricks hits fine 85 and Van der Dussen makes 60
Topley takes 3-88 despite finger injury as England's bowlers toil in the heat
Ffion Wynne, Timothy Abraham and Jonty Colman
England's players look frazzled from that punishing time in the field.
Ben Stokes attempts to reignite this chase by advancing down the pitch and pulling Marco Jansen for four. His first runs in this game.
#bbccricket
Jambarrell: What a terrible decision on winning the toss to put them in.
Rob: I don’t blame the batters for collapsing here. They’re all dead on their feet. All Buttler’s fault, it was an incredibly bad decision to choose to field first in these conditions. Should have tired the SA players out instead.
Mike: England not learning from earlier matches and not batting first and setting a total. Particularly in this sweat box where they could have stuck SA in the field and exhausted them. Just seemed common sense? A lot of muddled thinking this World Cup.
Harry Brook is the new batter and he finds the boundary with a drive through point off Marco Jansen.
Kagiso Rabada is disciplined in the next over as he replaces Lungi Ngidi and persists with that full length into the pads.
Here's how Joe Root was duped into flicking one into the hands of leg slip a little while ago.
Firdose Moonda
Cricinfo writer on BBC Test Match Special
In these humid conditions, that is why Marco Jansen is bowling. He gets that early swing. The last couple of hours have probably been the best of his career.
Simon Mann
BBC Test Match Special commentator
This has so far been one of the most one-sided matches of the World Cup. It was meant to be a huge head-to-head. Nothing is going right for England today.
Malan c De Kock b Jansen.6 (Eng 24-3)
This is all unravelling pretty quickly for England.
A big piece of bat on that from Dawid Malan. He must have known he hit that ball from Marco Jansen.
Three players have all perished working the ball off their legs.
All of sudden 400 looks a long, long way away.
Matthew Henry
BBC Sport in Mumbai
Malan couldn't look more guilty here...
Simon Mann
BBC Test Match Special commentator
What's that hit? South Africa want this and they have reviewed it.
Now then, Dawid Malan has attempted to work one off his legs from Marcos Jansen and South Africa appeal for a catch behind.
It's been given not out on the field. Quinton de Kock doesn't look entirely convinced, but Aiden Markram feels the rub of the green is with South Africa at the moment so goes for the review.
Has Malan been strangled down the leg side here?
Steven Finn
Former England bowler on BBC Test Match Special
Deep down, I don't know whether England think they can chase this down but with Stokes, Buttler and Brook, they are capable, they just need everything to go their way.
Simon Mann
BBC Test Match Special commentator
The way things are going, I would be surprised if South Africa didn't win by 150.
Cometh the hour, cometh the man. Ben Stokes walks into the fray.
England's Test captain leaves his first ball from Lungi Ngidi before a wild waft at his next.
Here's how Jonny Bairstow perished a little earlier.
Steven Finn
Former England bowler on BBC Test Match Special
It is all looking rather ominous and it has done for a while. All Joe Root has done is turn his wrists on it. South Africa have done their homework.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
Fair play to South Africa for having a man there, the ball just angling in, Joe Root feathers it away but it is straight to David Miller.
Root c Miller b Jansen 2 (Eng 23-2)
Clever captaincy from stand-in skipper Aiden Markram as he reacts to England's decision to play so frequently off their legs by moving a leg slip into place.
Did Joe Root see him?
Root sets off for a run after flicking the ball off his pads, but sees the ball go straight into the hands of the grateful David Miller in a wide leg slip position.
Joe Root pulls out of his first ball from Marco Jansen after being distracted by Andile Phehlukwayo.
A couple of balls later and Dawid Malan is squared up by Jansen and sees his outside edge beaten.
England need these two to lay a platform for what is to come.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
Beautifully judged, it went very, very high and it just seems inevitable really that was where Bairstow was going to perish. Van der Dussen lines that up perfectly and he didn't allow the light to interfere with his judgement.
If England were to challenge that 400, you would feel they needed a Bairstow special to get them going.
Bairstow c Van der Dussen b Ngidi.10 (Eng 18-1)
Gone next ball.
Jonny Bairstow's policy of stepping across and flicking it square comes a cropper.
The England batter skies Lungi Ngidi high into the night sky at the Wankhede Stadium. The ball comes down with snow on, but Rassie van der Dussen is ice cool and he clings on.
Steven Finn
Former England bowler on BBC Test Match Special
It only takes a deft touch to beat the infield here, there are so many gaps.
Jonny Bairstow continues to target the short boundary. He picks one up from Lungi Ngidi and whips it square for four.
Here's that six off the same bowler in the first over.