S Cook 23*, Amla 16* - dropped on 0
SA build on first-innings lead of 133
Rabada claims Test-best 7-112
Cook 76, Root 76, Moeen 61
England lead 2-0 in four-match series
Woakes c Elgar b Duminy 26 (Eng 295-8)
Image source, Getty ImagesA masterstroke! You can't accuse South Africa captain AB de Villiers of not mixing it up this afternoon. Part-time off-spinner JP Duminy is the next to get a go - and he gets Woakes with only his fourth delivery. Round the wicket, drawing Woakes forward, a very thin edge. De Kock fluffs the chance but it pops up off his knee to Dean Elgar at slip.
A short leg comes in for Woakes. It's little Temba Bavuma under the lid. I suspect some short stuff is in the offing. Woakes up to the task.
#bbccricket
Image source, APPaul Roberts: Come on Woakes. You have the opportunity here to become our very own James Faulkner.
Rob: Ah, so Woakes was selected for his batting - to make up for the frail top order. It makes sense, even if it is totally wrong!
Mr Vaughan is spot on. Kyle Abbott left the field after his last over - I'm not entirely sure why - and Morne Morkel is in for another burst. Woakes underlines his batting prowess with two glorious strokes through cover, the first of them bringing him four.
Michael Vaughan
Ex-England captain on BBC Test Match Special
"Abbott looks like he's struggling, he's off the pitch and back in the dressing room. I'm not too sure what's wrong with him but it looks like Morne Morkel will replace him."
Piedt into his 21st over. Round the wicket, nice and tidy. Moeen content to push forward, then a hint of extra bounce has him adjusting his hands.
Mark Boucher
Former South Africa wicketkeeper on BBC Test Match Special
"Rabada is a fantastic find for South Africa. He's a fantastic guy with a level head on him who understands what he has to do."
Yep, Rabada's spell is over. A victory of sorts for England with the six-wicket man and Morkel now out of the attack. Woakes greets Kyle Abbott's return with a flowing square drive for four.
Mark Boucher
Former South Africa wicketkeeper on BBC Test Match Special
"South Africa haven't been in this position for a while in Test cricket. They have been on the receiving end of some chitter chatter in the field and Elgar seems keen to give some back to the English batsmen."
Another boundary for Moeen, this time muscling a drive through mid-on. He moves on to 25 off 51 balls.
tms@bbc.co.uk
Can Andrew confirm that this is the first time two Birmingham born batsmen have been together at the crease for England?
Tim in Birmingham
Eng 278-7
Piedt, the offie, gets another go as Morkel takes a blow. I'm sure Moeen and Woakes are devastated. Mooen advances and drives straight and flat for four. The follow-on is avoided. Move back off the edge of your seats, everyone.
tms@bbc.co.uk
With the greatest of respect to South Africa - who have bowled and fielded very well to get England where they are - if England had taken their chances, this would be about a par game: England gifted South Africa 200 hundred runs (possibly more) through poor bowling and dropped catches.
Evan Byrne
Image source, APA word on the tea interval, which will be taken half an hour later than scheduled at 13:40 GMT. I'm hearing that play could continue well past 16:00 too, light permitting. Rabada continues, Moeen not entirely comfortable but he survives. Rabada breathing heavily. Is that his lot?
Mark Boucher
Former South Africa wicketkeeper on BBC Test Match Special
"Woakes has really looked the part. You'd expect a number nine to play some shots but Woakes has looked like a genuine batsman and played some fantastic shots."
A mixed bag there. Woakes follows an awkward-looking one-handed drive at Morkel that earns him two down the ground with an imperious back-footed force through cover for four. Then he almost ducks into a bouncer. Millimetres away from taking one on the bonce.
Streaky. Very streaky. Moeen chases one angled across him by Rabada and it only just evades backward point. It didn't quite carry but it's hardly authoritative from England's number eight. Five off the over.
Jonathan Agnew
BBC Test Match Special
"Morkel is tearing in as if his life depended on this. It's like he's on some sort of rocket fuel."