Blimey, you don't want to be doing this when you're trying to save a game. Ball to fine leg, Du Plessis coming back for a second, having to dive to make sure he beats Sam Curran's throw. A direct hit would have seen him gone. Replays show that bowler Anderson may have been in Du Plessis' way as he turned, and Faf isn't too pleased about it. The skipper does, however, give Ben Stokes a playful tap of the bottom.

Ryan Sidebottom
Ex-England bowler on The Cricket Social

A very good opening spell by Broad and Anderson, setting the tone really well. Good decision to get Stokes on now and let them rest up for the new ball.

Stokes really put his foot on the gas with a sustained spell of bumpers last night. This time he's full to Malan, drawing the batsman into a rare loose stroke with one that swings away. It's a maiden. A very good start from Stokes.

Rob Davidson: Amazing how umpires can see bowlers land in an imaginary red box but can’t see them land over a white line that actually exists.

Stuart Broad off, Ben Stokes on. The pitch remains slightly sleepy. England should make it a coffee.

James Anderson inspects the ball, shines it on his right thigh, then scurries in to Faf du Plessis. Du Plessis wafts his bat in the direction of gully, raises it high like a baseball player, then brings it down in perfect, straight defence. Get used to that. Du Plessis will cling to this until the nails are ripped from their beds.

As a man who often does battle with a one-year-old, I imagine the prospect of a batting vigil to save a Test is a bit like preparing for a night with a sleepless baby. At the beginning, it seems like an impossibly long amount of time. There will be periods of loneliness. It's best not to think too far ahead. One mistake and the whole thing unravels.

Stuart Broad has just had a second warning for running on the pitch. One more and he's gone from the attack.

Andy Zaltzman
Test Match Special statistician on The Cricket Social

That's one where you call for the review if you have two reviews left.

Pieter Malan is batting well outside his crease. When he pushes forward and gets hit on the pad, England ask the question. There's possibly some bat in there, it probably hit him outside the line and it could have been going over the top. Joe Root is right to keep his one remaining review in his back pocket.

Jonathan Agnew
BBC cricket correspondent in Cape Town

It’s a patience day today for England - you’ve got to do your skills well. You mustn’t go searching for wickets. You’ve got settle into a rhythm. All the pressure is on the batsmen - they are the ones who have got to survive.

If you start going to silly plans, with three or four men out on the boundary and bouncing the batsmen, then you are in trouble.

Broad straightens up, meaning that Du Plessis has to use his pink bat (not totally pink, but with flashes) to defend. I wonder how long it might be before Broad is told to put his feet up and wait for the new ball. Maybe Sam Curran will target the stumps slightly more.

To counter that point, if this match was scheduled for four days, it would have been played differently. Firstly, we would have had an extra half-hour each day, so we would have been two hours further on last night. Also, the tactics would have changed. England might have scored quicker in their second innings, declared earlier.

Can you tell I'm not totally against four-day Tests?

I don't mind The Hundred either.

There. I've said it.

Adam Mountford
BBC Test Match Special in Cape Town

Interesting timing from Cricket South Africa, which has restated this morning that their official policy is to support four-day Test cricket. They remind us they hosted the first official four-day game against Zimbabwe a couple of years ago. Today we go into a fifth day at Newlands with all results possible. Had this been a four-day game the teams may well have shaken hands on a tame draw last night.

There's a real silence in Cape Town. Total quiet as Anderson runs in, then the shout of "yes" from Du Plessis is audible as he turns off his pads and runs the single. For the first time, there are more empty seats than punters. That doesn't mean it won't be loud later. The England fans just have to get through the hair of the dog first.

Ryan Sidebottom
Ex-England bowler on The Cricket Social

England haven't bowled a bad ball yet.

Yep, the combination of Malan and Du Plessis could signal a serious blockathon. Having said that, the block will only be required if Broad gets his line right and, again, it's wide of the off stump. It's pretty from Broad, but not threatening just yet.

Andy Zaltzman
Test Match Special statistician on The Cricket Social

Malan has faced 202 balls, the longest fourth-innings ininngs on debut since Faf du Plessis batted for 376 against Australia in Adelaide in 2012.