Postpublished at 12:09 British Summer Time 24 May 2015
Michael Vaughan
Ex-England captain on BBC Test Match Special
"Cook has been working with Graham Gooch and he has got his trigger movements back to where they were a couple of years ago."
Cook 153*, Stokes 101, Root 84
Stokes hits 85-ball ton, fastest at Lord's
First innings: Eng 389; NZ 523
First Test, day four, Lord's
Phil Dawkes and Jamie Lillywhite
Michael Vaughan
Ex-England captain on BBC Test Match Special
"Cook has been working with Graham Gooch and he has got his trigger movements back to where they were a couple of years ago."
Cook's half-century was amassed in exactly three hours of very challenging Test cricket. Henry continues to get the ball to swing and Root picks up another single with an inside edge that has the bowler yelping in hope that he may have claimed another scalp.
Stuart: Of course Boycott would like Cook's approach. Slow and steady. The game's moved on. He's not a Brendon McCullum, which is fine, but he doesn't move the game forward; gets out and then the collapse starts. Thank heaven for Root.
Jon: Slowly slowly boys, got to bat out the day, lead of 250 to then tempt them into a chase tomorrow...but you must stay in the middle to get there!
England's captain punches one down the ground off Henry and picks up three runs that take him to 50. His 41st in Test cricket. He acknowledges all sides of the ground but it is every inch the celebration of a man with a big job still to do.
Drinks time. Well, it started horribly for England but they have consolidated well. Cook and Root confer over a beverage, no doubt re-iterating the over-riding imperative to still be around at lunch.
Alec Stewart
Ex-England captain on BBC Test Match Special
"Testing times for Cook & Root but so far so good. Plenty more of the same please..."
Brendon McCullum has been in the wars this morning. His hamstring appears to be OK after a mis-field earlier. Now he shakes his finger after mis-fielding another at extra-cover. I think he caught it on the end of one of his digits. I know how that feels. His nail will be a deeper purple than Blowers' loafers come morning. Root plays a loose shot to a short ball from Southee that nips away and past his outside edge. The batsman chastises himself for the momentary lapse.
Jack Allum: Root and Cook gone into ultra defensive mode already. No need for it. We need to score runs. Not just survive.
Thomas Kirman: People are looking for a reason to drop someone, in this case Bell, so a certain someone can be accommodated.
Having been so conservative (as a necessity) Cook is given the chance to open up to a short Henry ball, which he pulls at and pads past Latham down the leg side for four leg byes. The England 100 is up. They are delicately eating into the lead. Slowly, slowly, catchy... er... Kiwi.
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
"This is right up Cook's street: bat all day, get 120-130. Don't over-complicate it by trying to play every shot in the book. He's very good at that. He's a top player."
Ed Smith
Ex-England batsman on BBC Test Match Special
"I haven't seen a better concentrator playing for England. I can't think of anyone better at getting into a space, staying calm and blocking it all out."
England 97-3 (38 overs) - trail by 37 runs
Batsmen: Cook 44*, Root 10*
Fall of wickets: 14-1 (Lyth 12), 25-2 (Ballance 0), 74-3 (Bell 29)
Bowling figures: Boult 14-4-32-1, Southee 13-2-39-2, Henry 8-1-18-0, Craig 3-0-6-0
First innings: England 389; NZ 523
Brendon McCullum shuffles his pack again by bringing back Southee, but Cook's keeps his concentration. He flicks one to leg to add another single. Such is their scarcity that every run is being applauded now.
Bush: Can I remind everyone that @Ian_Bell hit a Test hundred last month?
Antony Stewart: Bell won an Ashes series single-handed, has hit a little rough patch, and people want him dropped! Pipe down.
Cook and Root need to accept that their bat will be beaten on occasion today. This Kiwi attack is world class and the conditions and perfectly suited to their style or swing bowling. The key is to move on immediately from being beaten, concentration unaffected. Root does just that with a solid response to a Henry ball that nips away from his outside edge early in the 37th over of the innings.
Cook looks calm and composed with a determined focus to his game. We all know he can bat and bat and bat if required in tough circumstances. He will gain confidence from each challenging over he is able to see off. He manages Boult's latest with ease and is unfortunate not to get some runs with a checked drive through extra-cover that has a fielder diving to stop.
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
"Cook is playing well. His feet are going, his head is still, he's not rushing at it."
Scott Brehaut: Some mad comments re Bell. He's usually class under pressure, getting some very good tons when needed. In bad spell, but class.
Will: Though I'm obviously hoping this won't happen: if Root gets out cheaply it would silence Mr Boycott. For a while at least.
Henry has picked up with Southee left off. Full, swinging, applying plenty of pressure. New Zealand have been bang on the money so far this morning. Root is forced to go on the defensive to see out six balls for a maiden.
England are consolidating. Boult is posing a lot of questions with some devilish swinging deliveries but Cook and Root have so far managed to find adequate answers. However, the home side are so far from out of the woods, they may as well be wearing a red hooded cape.