England win by 7 wkts in three days
Unassailable 2-0 lead in four-Test series
South Africa 83 all out in 33.1 overs
Broad 6-17, including 5-1 in 31 balls
England chase 74 to win: Cook 43
Chris Morris comes into the attack. South Africa appear to be going through the motions here. Cook tips a single to fine leg, and Hales blocks out another couple.of deliveries. 22 consecutive scoreless deliveries for 'England's answer to David Warner' now...
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Image source, Getty ImagesRichard Black: Cook's record as captain: away series wins in India & SA; x2 home Ashes wins. Humble pie on the menu for his critics? @ShaneWarne, external.
That's a good delivery from Viljoen, full and speeding past the outside edge of Hales. The Nottinghamshire opener still looks out of sorts...
Neil Manthorp
BBC Test Match Special
"England's media officer says they are awaiting news from the physio about Steven Finn."
Richard raises a good point. It is certainly a curious sight to see Hales blocking and Cook batting with much relative fluency, especially with only 74 needed. On the other hand, can you blame Hales for wanting to scrap his way to a red-inker, with his place in the side still in the balance? He blocks out a maiden to Morkel to take him to five off 27, his strike rate just 18.
tms@bbc.co.uk
Somebody - press or coaching staff or both - has got inside Hales' head. He is a hitter. If he is not a good enough hitter for Test cricket so be it but he will never make it as a blocker for sure.
Richard, Norwich
Flirty from Cook - having a little flat-footed sally at a wide bouncy delivery outside off. Decent over from Viljoen, which he ends by squaring Cook up and inducing a pretty fortunate edge which trickles through the slip cordon for four.
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Naveed Afzal: Eng are going from strength to strength. Great depth in batting. 2-3 X factor cricketers, young vibrant side. Will only improve.
Hales is still scratching around. Morkel has him wafting at a wide, full one which whistles through to wicketkeeper Dane Vilas. But he survives another challenging over.
Graeme Smith
Ex-South Africa captain on BBC Test Match Special
"I'm running out of things to say. Just waiting for England to chase down this 58 and then the South Africa post-mortem will begin."
Image source, ReutersHardus Viljoen into the attack now. It's scattergun stuff from the big man - his first delivery is sprayed miles down the leg side and forces Vilas into a brilliant goalie-style save, his second is bang on the money and prompts a big LBW appeal against Hales.
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Phil Kennard: I went to walk the dogs when South Africa were 16-0. Come back and we are chasing down 63 to win. Awesome stuff.
Dean Elgar claps and hollers his encouragement from the slip cordon. Is he the man South Africa go to for the captaincy next? AB de Villiers hasn't exactly been making encouraging noises about his long-term future in Test cricket. You'd have to say - and who could imagine saying this a year or so ago? - the job looks a bit of a poisoned chalice at the moment. Mind you, South Africa will still be a formidable team as long as they have Morne Morkel in the side - he beats Cook's outside edge with another jaffa.
Image source, BBC SportInspired by what you've witnessed today? Want to bowl like Stuart Broad?
Rabada hasn't quite hit his lengths yet in this innings - he's just erring a bit short. He then overcompensates with a slightly overpitched delivery and Cook gets his weight nicely into a drive which races away to the long-off boundary.
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David Beckett: Incredible bowling performance by England. Remarkable that, of the 20 South African wickets to fall, only one was LBW.
Morkel drops too short and Cap'n Cook is off the mark with a flashing square drive off the back foot that goes for four. Half-chance off the next ball, Cook flicking aerially on the leg side and just clearing the 5ft 3in Bavuma. It looped up invitingly but Bavuma just couldn't react quickly enough to get the jump in.
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Jay: That's 5.4% of the required score knocked off in one shot.
Rabada from the other end. That's the kind of shot that has often brought about Alex Hales's downfall - big booming drive, bat away from his body - but he gets a big stride in and belts it through the covers for four. The next stroke isn't too clever though - losing his shape as he attempts another expansive drive and almost getting himself in a pickle.
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Simon Harkins: Big session this for Hales. I hope he proves the critics wrong & sees us home.