Anderson removes De Bruyn late in day
Elgar 54, De Bruyn 48, Bavuma 48*
Moeen reaches 100 Test wickets
Eng: Root 190, Moeen 87, Broad 57*
Morkel 4-115, Philander 3-67
First Test, Lord's, day two
Stephan Shemilt
BBC Sport at Lord's
That, in the space of three Morkel deliveries, is a great example of some wonderful seam bowling. The big man scrambled the seam slightly, first getting the ball to nip up the slope to produce a beauty that got Root. Two balls later, he slanted it down the incline to rattle Dawson on the pads. One out and up the slope, one in and down the slope. Two wickets in three balls.
Michael Vaughan
Ex-England captain on BBC Test Match Special
Broad is looking at the pitch as if it scooted a bit low. I do think this pitch will go a bit lower, it happened in the county match on days three and four when Yorkshire played Middlesex.
Ali 65, Broad 0
It's doing a bit. New man Stuart Broad is beaten outside off by a Morkel ball that stays a bit low.
Well, it's anything but dull.
Dawson lbw Morkel 0 (Eng 367-7)
Yep. Gone. South Africa's morning gets even better. There was bounce and movement to leg but the review shows it was clipping the stumps, so umpire's call and another man has to depart. Not exactly the Lord's Test debut Dawson would have dreamed about.
It is all happening! Liam Dawson is the new man and he is smacked on the pads by Morkel. Up goes the finger. It looked out to me.
Jonathan Agnew
BBC cricket correspondent on TMS
A wonderful performance by England's 80th Test captain who came out yesterday with his team in some trouble.
Michael Vaughan
Ex-England captain on BBC Test Match Special
It was a surprise, I don't think the crowd were expecting that, it was a good ball, do you go forward or hang back and in the end he did neither. It hit De Kock quite fast and he had a bit of panic to get the gloves on it. But what a tremendous innings.
Root c De Kock b Morkel 190 (Eng 367-6)
What a shame. A magnificent innings comes to an end in a tame manner as Root provides a slim nick to a full Morkel ball in the corridor. De Kock catches and England's skipper has to depart.
Just the start SA wanted.
Jonathan Agnew
BBC cricket correspondent on TMS
I saw Joe this morning and he said he'd got back to his room and listened back to our podcast with his Dad and Grandad.
You can listen to that here
Partnering Morkel this morning is Vernon Philander, the man who did most of the damage in the day one morning session that now feels like a lifetime ago.
Root welcomes him with a back-foot push, played late to beat the field and find the rope.
Moeen is less assured, as Philander finds an edge but fortunately for the left-hander it doesn't carry to slip.
Stephan Shemilt
BBC Sport at Lord's
The Zutons have fallen on hard times...
The towering Morne Morkel shakes of some rust with the first over of the day. It's a steady, sedate start that doesn't ruffle any England feathers, regardless of which side of the wicket from which the Proteas giant bowls.
Moeen caps the six with a typically picturesque drive through cover for four. Poetry in motion.
Right then, the players are back out, the sun is shining, the stands are filling up, Joe Root has no doubt dosed up on Lemsip*. Here we go again...
*Other cold medicines are available.
Things are looking good above St John's Wood...
Vic Marks
Ex-England spinner on BBC Test Match Special
I remember Andrew Strauss, in particular, seemed particularly bad at starting again the morning after a big hundred.
For the inside track on a remarkable first day in Test captaincy for Joe Root, you could do a lot worse than read the piece by our chief sports writer Tom Fordyce.
Tom refers to captaincy as a rollercoaster. Hopefully, we're in for another ascension today, not a plunge.
England's Ben Stokes, speaking to Sky Sports: "We're really happy. The new skipper has set the tone and the partnership between Joe and Moeen has really set us up for the day."
Stephan Shemilt
BBC Sport at Lord's
This is WG Grace. The grandmaster of English cricket. Look closely. Someone has set their coffee down on him. I've also just seen one chap stub out a cigarette on the Dr's foot. Show some ruddy respect.
tms@bbc.co.uk
If Joe gets his double century as a new captain, the least they can do is name a beer after him.
Marc Smith-Evans
Steven Keates
Forecaster, BBC Weather
A dry afternoon to come at Lord's, with the best of the sunshine this morning. A little more in the way of cloud this afternoon, but we should remain dry. It will be another hot afternoon, though not quite as hot as yesterday, with a high of 28 Celsius (82F) expected in just a light westerly breeze. Staying dry and warm into the evening.