The one shining light for England was Ye Olde skipper Cook. Some streaky scoring shots, others more convincing.

If you're baffled by that Jacob, I'd love to know your reaction to this next suggestion ...

Gareth Neale: People clambering for Eoin Morgan to play Test cricket again are crazy. He hasn't even played four day cricket for two years!

Jacob Rawcliffe: Baffled by people suggesting bringing a one-day batsmen into the side. How will Butter or Morgan offer more defensive stability?

The review system worked a treat here for South Africa. Ballance given not out, the tourists review.

For me, at first glance, it looked out. After seeing the first replay, I was convinced Ballance was safe. Ball tracker proved otherwise.

Andrew Johnson: England aren't suddenly rubbish, it's amazing bowling. SA can't keep it up all series. Don't panic, regroup, win the next match.

Ashley: Some responsibility must rest with the coaching staff surely? England's top order has been poor throughout Bayliss's tenure.

James Foster: It's about time we brought back KP.

It's hard to know whether you're being sarcastic or not there, James.

The day started off terribly for the hosts. This didn’t do anything to halt the ‘Keaton Jennings out’ brigade.

Cheers Matt. Four ticks there but a very cross looking England dressing room at lunch.

Let's have a recap on an eventful morning session at Trent Bridge ...

An early wicket. Tick.

Keep Ballance under pressure. Tick.

Root out. Tick.

Cook out. Tick.

The dream session for South Africa.

Time for me to hand you over to Kal Sajad to take you through lunch and the afternoon session. Unless England fight it out until tea, this may be the last you'll hear from me in this Test.

And that is lunch as Maharaj concedes just a single from the final over of the session.

If England had a script, that was certainly not it.

Four wickets gone and both Alastair Cook and Joe Root back in the pavilion.

Adam Taylor: Repeatedly losing four wickets inside 25 overs is unforgivable at this level. England have serious top order problems.

Grant Kennett: These England collapses are crying out for Morgan coming in at around five or six. Just to have that "skipper's" head to calm things.

Sergei: Same old talk from England about digging deep. Actions not words please.

The target is below 400!! Brought up with a four to Stokes down to third man!

That's the first boundary Morris has conceded all morning.

Stokes almost pops a bouncer back to the bowler off a leading edge later in the over and as a result Du Plessis brings in a short leg.

More short stuff to the usually aggressive Stokes but the all-rounder is just looking to see this out until lunch.

It is not often you see Alastair Cook bounced out.

Here is the wicket of the former skipper which gave South Africa a fourth wicket of a near perfect session for them.

More danger for Stokes now as he has Maharaj to deal with. The spinner has plenty of rough to bowl at outside the left-handers off stump.

Stokes is lunging trying to get to the pitch of the ball and as a result Du Plessis brings in a second bat pad.

Too short from Maharaj. Stokes gets off the mark with a single down the ground.

Ben Stokes strides out at number six for England on a pair.

Morris doesn't give him any opportunity to get away by completing a wicket maiden.

The camera picks out a man carrying six ice creams in the crowd. What'll happen first? The ice creams melt or England bowled out?

Graeme Swann
Ex-England spinner on BBC Test Match Special

I tell you what, if you're bowling a bouncer at Cook, who is the best player of a short ball I have ever played with or against, this was perfect.

He is rushed him, it was going to hit him straight on the badge. This has absolutely smashed him on the glove, all he did was lift his hands to protect his face. Chris Morris, take a bow.

Image source, Getty Images

Maharaj must be bursting with glee at the top of his mark after the turn and bounce of the previous over.

The spinner goes in search of the magic ball first up and Bairstow is able to clip four off his pads.

There plenty of tension for the rest of the over. Yelps of "catch" from De Kock after every ball. There is one fielder in at bat pad but he ball drops safely.

Robert Hinchcliffe: It's no good everyone talking about Cook batting for 2 days if nobody's going to stick with him.

Mike Bell: A bright afternoon, but these are dark days for England's batting. Need Hameed to find a way back, and try Stoneman ahead of the Ashes.

Merv C: I bet there won't be any complaints about the speed of Alastair Cook's batting speed if he bats out the day.