Mark Stoneman goes on the drive again, but there's a fielder in place to cut the ball off.

Meanwhile, Neil Wagner is loosening up...

Jonathan Agnew
BBC cricket correspondent on Test Match Special

That is a lovely shot by Mark Stoneman, I must say. One out of the very top drawer. You see strokes like that and wonder what the problem is.

That's a lovely cover drive from Mark Stoneman, and he's picked up another boundary with it.

He follows it up with a significantly less pretty swish outside his off stump.

Arjun SIngh: It always makes me laugh that people are so quick to write off Cook. Yes, he’s horribly out of nick. Yes, it’s very disappointing. But the dude has over 12,000 Test runs... his class is permanent. He’ll be back.

Martin Niro: Cook needs two more Tests to get the record of playing in the most consecutive Test matches - All about the sentiment. Select him for the Pakistan Tests then decide before India. Though he holds so much sway I assume he'll retire before ECB drop him.

I wonder if the selectors might feel differently about Cook's position if the rest of the top order were scoring heavily.

But you've got two players in Mark Stoneman and James Vince who haven't really convinced yet - although I think Stoneman is a better bet than Vince - and putting another new, inexperienced face in makes that top order even more brittle.

James Vince works the sole run of the over off his pads.

Vic Marks
Ex-England spinner on BBC Test Match Special

That was going past leg stump. Good decision not to review it.

Close!

Colin de Grandhomme whacks one into James Vince's pads, who head goes dropping to one side as he shuffles back into his crease.

Sliding down leg, I think, and Kane Williamson opts against the review.

Image source, Getty Images

Vic Marks
Ex-England spinner on BBC Test Match Special

You sense England have decided as a team that they will play in a relatively positive manner. Most batsmen bat better when they're trying to be positive.

Time for a bowling change. Colin de Grandhomme replaces Tim Southee's, who had a spell of 6-1-23-0.

A nibble down the leg side brings a couple for Mark Stoneman, before a cracking drive off the back foot brings him a boundary off Trent Boult's latest over.

Graeme Swann
Ex-England spinner on BBC Test Match Special

This is a huge knock for James Vince and Mark Stoneman for their England careers. A century here and they'll be back in the summer. But if not, any young English player scoring big early in the county season could well surpass them.

I think ultimately Alastair Cook will make the final decision on his Test career. Does he want to carry on? He's said before that he considered retiring during the Ashes.

For what it's worth, I'd still pick him for the first Test against Pakistan. Time back home with Essex might help, too.

Back on the field, James Vince cuts Tim Southee for another four.

Francis Younghusband: Is Cook the most inactive English player? Stands at slip in the field and no runs whilst batting? Doesn't even move his feet?!

Jason Hamburger: Alastair Cook has scored 23 runs in four innings in New Zealand and people still think he’s world class. An amazing batsman he once was but surely it’s not long before he moves on.

Matthew: Cook's final Test innings? Overseas? Perhaps. At home? I suspect not. Runs still to be scored in England...

Width from Trent Boult, and James Vince flashes hard enough at the ball to send a thick edge down to the third man boundary.

Boult readjusts, and Vince hops into line to see out the rest of the over.

Simon Mann
BBC Test Match Special commentator

Will it be like Perth today for Vince? He got to 55 with the perfect innings, without a single false stroke - then got that unplayable ball from Mitchell Starc.

Graeme Swann adds: I was sitting next to Ricky Ponting during that innings - he said it was one of the most perfect innings he'd ever seen.

There's a gentleman in the crowd reading James Anderson's autobiography.

Tim Southee finds the outside edge of Mark Stoneman's bat, but the ball rolls along the ground as it goes towards the slips. A back foot punch brings Stoneman the sole run from the over.

Andrew Samson
BBC Test Match Special statistician

Trent Boult now has dismissed Cook nine times - he averages 16.55 against him. But Cook has 240 runs against Tim Southee without being dismissed, which as far as I know is the fourth highest by any batsman against one bowler.