I've just heard that Joe Root has been caught behind in 43% of his Test innings, when caught behind usually only accounts for 16% of dismissals. They do say that only good players edge to the keeper. Dane Piedt back on, Taylor and Stokes taking a single apiece.

Peter Eastwood: Joe Root, sensational as he is, seems to have a worrying tendency of looking excellent without kicking on to make big hundreds.

Geoffrey is right about the quality of the delivery. Nice line, moving away. In fact, looking again, it really did nip after being angled in. Both Root and Cook have been got out today, rather than giving their wickets away. Ben Stokes is the new man. England still have a lot of work to do.

Geoffrey Boycott
Ex-England batsman on BBC Test Match Special

Image source, Getty Images

"It was a really good ball. If you want to be picky - and I'm not trying to be - I'd say Joe Root didn't get right forward. His left leg is bent fractionally. He wasn't bent right into his shot, but that's not being critical. 

"Kagiso Rabada has got a knack of getting wickets, hasn't he?"

The odd delivery misbehaving gives the impression that 'one ball will have your name on it'. Reminds me of Blackadder, when Baldrick carves his name into a bullet. More from Dean Elgar, but it's much less threatening than anything we've seen today. If I was Root or Taylor, I'd be looking to spend more time facing Elgar and less in front of Rabada. 

Geoffrey Boycott
Ex-England batsman on BBC Test Match Special

"Every shot he plays. James Taylor looks like he wants to score. He's not been comfortable. Just settle down and play an innings.

"South Africa have been having a good spell - they've not been giving you many balls to hit."

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The atmosphere is still heavy in Centurion, grey. The clouds aren't threatening. mind. At fine leg, Morne Morkel has a ton of bats thrust in his direction, all owned by kids (and big kids) looking for an autograph. In the middle, Rabada gets one to scoot at Root, with the batsman fortunate the ball is wide of the stumps.

Rob Meech: I really like James Taylor. But his eagerness at the crease can sometimes turn into skittishness. Needs to calm down a fraction.

Like politicians mulling policy, South Africa change the spin. Dane Piedt off, left-armers of Dean Elgar on. It's pretty average from Elgar, but Taylor can't take advantage, even missing out on an end-of-over full toss.

Morne Morkel's dangerous spell is over, with the slippery Kagiso Rabada into the attack. Morkel bangs the ball in, so was more likely to get steepling bounce. Rabada might get it to keep low. A new problem. Rabada, who was very good earlier on, is back on the money to Taylor, who defends in his idiosyncratic, limby style.

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Kevin Pietersen smashed 74 off 39 balls as Melbourne Stars posted 176-9 in the Big Bash final against Sydney Thunder at the MCG.

The former England batsman hit four fours and five sixes, while compatriot Luke Wright was the second highest scorer with 23 in an innings that ended with three wickets off the last three balls.

Earlier, Sydney Thunder beat Sydney Sixers by three wickets with three balls to spare to win the Women's Big Bash.

Michael Vaughan
Ex-England captain on BBC Test Match Special

Image source, AP

"It's a very high energy game that Joe Root plays, you need a lot of fitness to bat the way he does. He's always dancing around and looking to sweep. He really has played beautifully."

Joe Root is reprieved. We eventually got a replay that showed the noise came when the ball was well past the bat. I think the toe of the bat might have even hit De Kock's gloves. When the decision came, Piedt and De Kock shared a "that wasn't me, it was you" glance. No anger from South Africa, they don't think they've been wronged.

Michael Vaughan
Ex-England captain on BBC Test Match Special

"I reckon it has come off the top of the sticker on the bat. It is whether there is enough information to overturn the decision, because he was given out." 

The problem for Root is that it will be difficult to find the evidence to overturn. Remember, he's been given out on the pitch. De Kock is blocking most of the replays. No sounds picked up...

Big, big shout! And given! Joe Root sweeping Dane Piedt, taken behind by Quinton de Kock. Up goes the finger, but Root reviews immediately. He's convinced he's not out...