3.45pm: That's how you bowl on this pitch. South Africa's batting might not be so secure, but their bowlers know how to win games at home. A miserable English collapse of 7 for 39 means South Africa have taken a 103-run lead, which is enormous in the context of a low-scoring game. We've heard that batting doesn't get easier here, and seen the evidence of some variable bounce already. Unless the old warhorses, Anderson and Broad, can produce something remarkable, England are facing a potentially brutal day or two under the Saffer sun.

England have lost their last six wickets for 39 runs. Big Vern ready to apply the mercy blow

"Isn't it wonderful to see England's careful rejuvenation plans bearing fruit against a wobbly South Africa in transition? Oh, dear." Masterful, Lou. And points for being the first to go there

James Anderson trudges out. SA still more than 100 ahead

"Grisly? As a neutral, it's honestly unsurprising..." Yep, that too, Jack. And compelling, if you like watching the fast (or fast-ish, in Vernon's case) men do their thing

"Sad to see this is Big Vern's last test, he is easily among top bowlers in the world." Last Test series, Rio. But yes, the Proteas are going to miss him

That catch is de Kock's sixth of the innings and puts him on this list - a joint record for SA with his new coach, Mark Boucher (and a couple of others)

Out comes Stuart Broad at No. 10

"Don't quite agree : Burns & Joe Denly are quite reliable too." Yes, perhaps, Nick. But averaging 30ish isn't going to get you in many Test top orders

"SA need to be wary of Buttler here," suggests Peter. "No reason for him to hold back, can put another 100 up in the blink of an eye"