De Kock & Amla put on 239 for 1st wicket
Quinton de Kock made 135 from 117 balls
Captain Hashim Amla hits 22nd ODI 100
Root made superb 125 for England
England lead five-match series 2-1
England won toss
South Africa: 319-3 from 46.2 overs
Not out batsmen: Du Plessis 33, De Villiers 0
Fall of wickets: 239-1 (De Kock 135), 249-2 (Wiese 7), 311-3 (Amla 127)
Bowling figures: Willey 5-0-40-0, Topley 6-0-46-0, Stokes 8.2-0-54-0, Jordan 7-0-54-1, Moeen 10-0-75-1, Rashid 10-0-45-1
England: 318-8 (50 overs) - Root 125, Hales 65, Stokes 53
That's it - a single to fine leg means Du Plessis finishes on 33 not out from 29 balls.
Free hit - and Du Plessis smacks it for a straight six to level the scores.
#bbccricket
Teddov: Quite fed up with everyone having it in for Jordan.We've seen what he can do,need to stop berating players after a few bad games.
Sam Roberts: Not a happy fan, how on earth did Jordan deserve to get in over Chris Woakes at least who had a good series in the UAE.
Jack Byrne: Anyone know the point of Chris Jordan?
SA 312-3
Stokes to bowl - can SA finish it this over? It's a high, wide full toss - which Du Plessis swats to cover and Morgan can't hold on. But for the third time in this innings, it's a no-ball for height.
De Villiers averages 54 in ODIs, with a strike rate of exactly 100, so you wouldn't think he'll need to take this to the last over.
Simon Hughes
BBC Test Match Special
"He has to be more or less dragged off, he looks a little weary, it has been a magnificent innings."
Amla c Buttler b Jordan 127 (SA 311-3)
Although they're well out in friont, South Africa are rather stumbling over the finish line. Amla, who's not given a chance all evening, chases a wide one and is caught behind. At least it gives him the chance of a solo standing ovation.
Who's in next? Only AB de Villiers...
Du Plessis rotates the strike. Nine to win, and Amla - on 127 and seeing it as large as a football - on strike. Make than eight to win, courtesy of another legside wide. We've had a few of them today.
Ebony Rainford-Brent
Ex-England batter on BBC Test Match Special
"It is just easy pickings right now."
More bodyline from Jordan to Du Plessis, and the ex-Lancashire man has no trouble in pulling a four over short fine leg, which is enthusiastically signalled by the South African fans on the grassy bank. Jordan fires another one down the leg side, FDP helps it on its way and it's 10 to win.
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
"The pitch has played a lot better than we expected and South Africa have played superbly."
SA 301-2
Stokes is giving it everything, but there's only one way this game is going. Amla steers a four through point to take the Proteas past 300. That's also the fifty stand. 18 needed from 30 balls.
#bbccricket
Maddy Raman: For England to be an exceptional side they have to get over this complacency when they're ahead in or have won a series.
Sam Roberts: What does Jordan offer, short, wide deliveries with some pace means easy runs, should be no where near the England setup.
The wristy Amla guides Stokes for four through mid-wicket, past the leaping Jordan. while Stokes sends down the eighth wide of the innings. There's a flash of lightning in the far distance, but the weather won't save England. Not only are SA about 30 ahead on Duckworth/Lewis, but I'd wager this match will be over before the weather gets there. 22 needed from 33.
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
"I think look, he is an outstanding fielder, I just feel there could be an improvement with Stuart Broad, I hope no one thinks I am being nasty to Jordan."
Chris Jordan returns, going round the wicket to the right-handed Faf du Plessis, who fends one off his body for a single. It's got to that stage of the game where there's a committee meeting of fielders every time the strike is rotated. Jordan hasn't had much good fortune from bowling short today - the fact that he's bowling round the wicket rather telegraphs that plan - and FDP helps himself to a four down the leg side, then blasting four more past the bowler. I'm reliably informed that a large lady is warming up her vocal cords.
Neil Manthorp
BBC Test Match Special
"They should canter home really, all the work has been done by De Kock and Amla.
"The important thing for England is to ignore the manner and the margin of the defeat."
Image source, APEngland turn back to Ben Stokes, we know how he can turn a game with the bat - can he do so with the ball? A tall order if ever there was one. Du Plessis finds the boundary for the first time, bashing a four back past the bowler. 38 needed from 42.