Root 60* and Taylor 24* at close
Morkel removes Compton for 49
Steyn has scan on shoulder injury
Broad 4-25 & Moeen 4-69 in SA's 214
Opener Elgar carries his bat with 118*
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
"I thought England had a chance of winning this series but I didn't think that South Africa's batting would be so poor. I can't see how they are going to get out of this situation."
Another fact. South Africa haven't managed a stand of 100 in a Test match this year. How can that be right for the world number ones? Dean Elgar, more central midfielder than opening batsman, stands in a stocky crouch that points his backside to square leg. Just a single from Finn's over.
Graeme Swann
Ex-England spinner on BBC Test Match Special
"Nick Compton is proving me entirely wrong. I criticised the speed of his innings yesterday but he scored a vital 85, so well played Compo."
It's turning. Square. Right-hander Steyn shuffles across his stumps and sees the ball spin down the leg side, testing wicketkeeper Jonny Bairstow, who masticates his gumshield as if it is some over-sized piece of chewing gum. A third ripper from Moeen misses everything and scoots for four byes.
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Jay: I'm now beginning to think that all the focus on Indian pitches was just distracting away from how poor the SA batting is now
Here's a fact for you. England opener Adam Lyth (remember him?) has as many Test hundreds in 2015 (one) as the entire South Africa team. Dean Elgar is looking to change that and could also become the first South African for 18 years to carry his bat. He drives the returning Finn straight for four, then defends behind the highest of front elbows.
Image source, AFPSouth Africa first innings: 156-7 (60 overs)
Batsmen: Elgar 82, Steyn 0
Fall of wickets: 0-1 (Van Zyl 0), 14-2 (Amla 7), 100-3 (De Villiers 49), 113-4 (Du Plessis 2), 137-5 (Bavuma 10), 150-6 (Duminy 2), 156-7 (Abbott 0)
Bowling figures: Broad 14-6-24-4, Woakes 11-1-22-0, Moeen 15-0-46-3, Finn 12-1-42-0, Stokes 7-1-19-0, Root 1-1-0-0.
England first innings: 303 (Compton 85, Taylor 70, Steyn 4-70, Morkel 4-76)
Dale Steyn is the next man out of the hutch, greeted with the in-out field of a man who has a reputation for giving it some humpty. Looking again at the Abbott wicket, it was one of the limpest Test dismissals you will see. Push forward, bat, pad, catch. The review simply prolonged his embarrassment. By surviving three balls, Steyn looks a place too low.
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
Image source, Getty Images
Image source, Getty Images"They are batting so badly they are making Moeen look like Jim Laker on a real turner. The South Africans are mentally shot."
Abbott c Taylor b Moeen 0 (SA 156-7)
Image source, Getty ImagesKyle Abbott is having a drink like a man who is sticking around. You're not Kyle, because that is a review as bad as those given to soppy rom-com The Wedding Date (yes, I was made to watch it on Christmas day). Clear inside edge to a Moeen Ali off-break, loop into the air, a diving James Taylor doing the rest at short leg. England are rampant and could be batting by lunch.
SA 156-6
Surely this is another? Abbott bat-pad off Moeen, another Protea wilting? He wants another look...
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Dave: 4th innings batting won't be easy on here, don't think they'll fancy anything over 250
As Rome falls around him, Dean Elgar remains like the last toffee penny in the Quality Street tin. England might be smelling blood - Stuart Broad prowling in the sunshine - but Elgar is still driving down the ground for four like a mini Graeme Smith. The fact he was aiming through the covers but got it straight was positively Smith-esque.
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Image source, Getty ImagesDan Armstrong: South Africa's 1st innings really putting the quality of Compton's knock in context.
With that, England are into this tail that is longer than an Irish wolfhound. Kyle Abbott the new man, looking befuddled by the turn Moeen is getting. Speaking of turn, that and the low bounce really suggest advantage England. Looking again at the wicket, Moeen got some lovely drift and dip, while some trickster sneakily nailed Duminy's feet to the floor.
Graeme Swann
Ex-England spinner on BBC Test Match Special
Image source, Getty Images"Duminy is a huge nicker off the spinners. I had a lot of joy against him in 2009 and Alastair Cook will have remembered that."
Duminy c Stokes b Moeen 2 (SA 150-6)
Image source, Getty ImagesGone! The introduction of off-spin does the trick after only three deliveries. It's a beauty from Moeen Ali - round the wicket, pitching middleish, turning and taking the outside edge of a static JP Duminy. Ben Stokes does the rest with a sharp catch at slip. It's been an ideal morning for England, who have grabbed the protea by the stem.
Graeme Swann
Ex-England spinner on BBC Test Match Special
"You get so much more out of Broad when he is the leader of the attack. I would say to him 'you are now the leader now' because he responds to the responsibility superbly. We know Jimmy will still bowl exceptionally and wouldn't be affected."
Broad, all stubble and sweat-streaked hair, comes round the wicket to the crouching Elgar, who has plenty of catchers for company on the off side. As he's done for the best part of a day, Elgar shuffles and nurdles, allowing Duminy his first convincing stroke - a drive straight to the cover fielder.
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Image source, AFPRachel T: How long before the stats back Stuart Broad as the best bowler in the world? Fantastic stuff!