SA 68-4published at 17:59 British Summer Time 30 July 2017

17:59 BST 30 July 2017

Target 492

Elgar's ready to resume - and is struck another blow on the left hand by Roland-Jones. Never let it be said that it's an easy life opening the batting in international cricket. Elgar forces a two past short leg, and takes a single to keep the strike - TRJ has 1-14 from six overs.

Michael Vaughan
Ex-England captain on BBC Test Match Special

Any time you get out it's horrible but right up there is that moment when you leave it and you go "oh no." The ball just nips back and you know, your mind has a blank moment, and it has happened twice to Faf du Plessis.

Postpublished at 17:53 British Summer Time 30 July 2017

17:53 BST 30 July 2017

South Africa physio Brandon Jackson - a dead ringer for 1990s Oldham striker Andy Ritchie - comes on to treat Dean Elgar between overs. Looks like a finger injury - and looks like there's a bit of blood.

Image source, Reuters

George King‏: Roland-Jones has taken seven international wickets so far in his one ODI and one Test. Three of his wickets have been Hashim Amla.

Bavuma doesn't look comfortable, holding off a fiery spell from Ben Stokes - England's "firestarter" as he describes himself in the title of his book. He and Elgar scramble a single apiece.

To explain, theoretically there are 19 overs left today. But with England bowling exclusively pace, it's unlikely that they'll get them in before 19:00 BST. Any overs lost tonight are lost forever - there will be 98 available tomorrow.

Michael Vaughan
Ex-England captain on BBC Test Match Special

I think it's been a really good cricket wicket, there have been times when it has done something but others when it has looked quite flat. If a bowler bowled a bad ball it usually went for four.

SA 63-4published at 17:48 British Summer Time 30 July 2017

17:48 BST 30 July 2017

Minimum 20 overs left tonight if they can be bowled by 19:00 BST

Roland-Jones has an arc of fielders in place for Elgar - three slips, a gully, and catchers at short cover and short mid-off. Elgar is quite square-on with the way he defends, and the erstwhile Somerset opener is dealt a whack on the waist - it looked too high to have thudded into his thigh pad. Maiden over, and probably a bruise for the batsman.

Michael Vaughan
Ex-England captain on BBC Test Match Special

It's been a quality display from England this week, everything they have done has been of a high standard. There will be many pointing the finger at Joe Root for declaring a bit late but look at the scoreboard.

Stephan Shemilt
BBC Sport at The Oval

Extra half hour, anyone?

Elgar taps a single, then Stokes bowls his third no-ball of the innings. Bavuma survives the over, having to take one hand off the bat as he defends.

Shaun Berkeley: Can England slow down please? I'm on my day off tomorrow & want to watch some cricket.

Theo Bowyer‏: Captain Calamity from FDP... no shot offered for the second time shows a scrambled head. South Africa to be bowled out tonight.

Here's Du Plessis departing for a golden duck offering no shot (again)

Andrew Samson
BBC Test Match Special statistician

Sohag Gazi of Bangladesh remains the only player so far to score a Test hundred and take a hat-trick in the same game, which came against New Zealand in 2013.

The crowd are in boisterous mode as Stokes walks back to his mark, with four slips, gully, short leg and silly mid-on in... and the hat-trick ball is on leg stump and nudged away for a single by Bavuma.

Right, stand by for the hat-trick ball from Stokes. Here's the first of those two in two for the Durham man...

Michael Vaughan
Ex-England captain on BBC Test Match Special

What a common trend this is becoming in Test match cricket with teams batting under this kind of pressure. They just have these kind of collapses.

South Africa have collapsed from 47-1 to 52-4. Temba Bavuma must have had to get his pads on in quite a hurry. Luckily for the Proteas, Dean Elgar is holding up an end, even if his partners can't. Elgar leg-glances Roland-Jones for four, and helps himself to four more backward of point.

Rachel T‏: Too soon to say that Amla is TRJ's bunny?!

As we attempt to keep up with that clatter of three wickets, here was how Hashim Amla fell...