Morris (26*) & Rabada (20*) add 42
South Africa slip from 117-1 to 225-7
Elgar 46, Amla 40, De Villiers 36
Two wickets apiece for Stokes & Finn
Every batsman reaches double figures
England lead 1-0 in four-Test series
Graeme Smith
Ex-South Africa captain on BBC Test Match Special
"Dane Vilas has had an incredible day. Thank goodness he answered his phone this morning. Now he's walking out to bat in a Test match and South Africa need him."
Steven Finn is a big, mean fast bowler with the ball in hand, but he spends his time between overs obliging with a few autographs on the boundary. Good to see.
The new man at the crease, by the way, is Dane Vilas. The man who was flown in from Port Elizabeth this morning after Quinton de Kock woke up in the middle of the night with an injury. Just one from Ben Stokes' latest over.
Graeme Smith
Ex-South Africa captain on BBC Test Match Special
Image source, Getty Images"He just tried to flick it. Hales had to move back and the sun was in his eyes. It was a good catch. Du Plessis threw his hands at a ball down the leg side and it sailed to the man on the boundary."
Henry Blofeld
BBC Test Match Special
"It was an absolute dolly, straight down backward square leg's throat."
Du Plessis c Hales b Finn 16 (SA 185-5)
Image source, Getty ImagesYou know when you're playing backyard cricket and you keep your little brother interested by lobbing up a simple catch? Well, Faf du Plessis has just done that - he can barely believe he's clipped such a simple chance to Alex Hales at backward square.
Andrew Samson
BBC Test Match Special statistician
"The only wicketkeeper to be involved in the dismissal of the first five batsmen in an innings is Brad Haddin for Australia against India, external at Brisbane in 2014."
There's a flourish about Temba Bavuma. He uses surgical-like precision to guide Ben Stokes through the off side for four. A rank delivery from the bowler, mind.
Alastair Cook, standing in the slips, chews gum and has a natter with Jonny Bairstow. We're at a crucial time in the innings: England don't want to be sucker-punched by a counter-attack now.
Graeme Smith
Ex-South Africa captain on BBC Test Match Special
"The game is nicely balanced at the moment. South Africa will hoping for 300, maybe 320. The surface has a bit in it and England have been a lot better since lunch."
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Image source, Rex FeaturesWe're asking for your greatest achievements with your best mates from school, in honour of Faf du Plessis and AB de Villiers: #bbccricket on Twitter,, external81111 on the text or email tms@bbc.co.uk.
Martin J McGuigan: Me & my mate shared all 9 goals in 9-0 win with me scoring 5. He was the local hero - newspaper said "Holdcroft scores 4".
Tema Bavuma is having his technique examined by Professor Anderson, who shapes one back in and finds the inside edge. Unfortunately for the master bowler, the ball runs for a single.
When he gets Faf du Plessis on strike, he bowls the perfect outswinger. Skills.
Henry Blofeld
BBC Test Match Special
"I don't think we'll get any interruption from the weather tonight, it looks lovely. We're set for an evening's cricket."
Image source, Rex FeaturesI'm not sure there's a single person who Ben Stokes is friendly with when he's bowling. He's grumpier than a constipated crocodile as he curses his own fielders, the batsmen and even glares at the umpire.
His mood isn't help by being worked for three through mid-wicket by Faf du Plessis. He digs in a bouncer to Temba Bavuma, who goes after it and pulls it round the corner for a single.
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Bhavin Shah: Excitement when phone beeps making me think a wicket has fallen. Disappointment when you realise it's a family whatsapp message.
Image source, Getty ImagesThere are parties breaking out all over the ground. Some dance to the tune of a brass band, others sip drinking the local brew in a paddling pool. Faf du Plessis is having his own party... getting hold of a James Anderson half-tracker and heaving it for four into the empty leg side.
Andrew Samson
BBC Test Match Special statistician
"Jonny Bairstow is only the second England wicketkeeper to catch the first four batsmen in an innings - after Jack Russell against Australia in Melbourne in 1990."
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Rob: AB de Villiers done by overconfidence rather than excellent bowling.
The average score for the first innings here is around 320. South Africa are a long way from that at the moment - especially with Hashim Amla and AB de Villiers back in the shed.
Ben Stokes is running in hard, scowling as he passes the umpire on the way back to his mark. Especially when Temba Bavuma puts his front forward and drives four through mid-off. Sumptuous.
#bbccricket
Fenners: So nice to see 161-4 in a Test match rather than 300-1. Nothing better to bring the supporters back.
Temba Bavuma is a very impressive young cricketer and he gets off the mark with a nice drive for three off James Anderson.
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Achievements with your best mate...
Chris Herd: Me and my mate just won a cracking hand of bridge.