There's still just the merest hint of reverse swing for Aamer Jamal to work with but it's nothing that will trouble Joe Root.

After a no-ball early in the over, Root guides the extra delivery to deep third for a single - the only run off the bat in the over.

A fairly becalmed start to the afternoon session so far.

Abrar Ahmed has been expensive so far in this innings but the Pakistan leggie continues the spell he began before lunch.

Ben Duckett and Joe Root are content to deal in singles for now and take four of them from the over.

Shot!

Joe Root doesn't need long to get back into the groove after lunch as he punishes a gimme from Aamer Jamal.

Wide outside off and Root crunches it through the covers for four.

Steven Finn
Former England fast bowler on BBC Test Match Special

It's another critical session for both teams in this Test. England are still 124 runs away from saving the follow-on. Will Pakistan enforce it if they were to bowl England out? I think they'd want to give their bowlers a rest and allow England to bowl last.

England also have the ability to build the partnership like they did in the first session and begin to see the glimmers of light of thinking about how they might try and force a result in this game. Because we know that with the way England play, a draw won't be in their mind.

Thanks, Matt. I think...

Yep, after a record-breaking moment to end the first session, let's get back to a Test match still firmly in the balance.

England's leading Test run-scorer is still there and will face up to the first ball of the afternoon from Aamer Jamal.

We will still continue the Joe Root love-in but now, as the great man would like, most of our attention turns back to this game as the players re-emerge for the afternoon session.

Having stolen the big moment, I'll handover to our Mr Consistent. Here's Sam Drury...

Steven Finn
Former England fast bowler on BBC Test Match Special

Joe Root wanted to show respect. He's got so much respect for what Sir Alastair Cook has achieved, I don't think he'd have wanted to belittle that by doing a big celebration.

It would have meant so much on the inside to him. But it's a mixture of two things - wanting to show that respect to Sir Alastair and the job to do to save this game.

Sir Alastair Cook
Ex-England captain on BBC Test Match Special

Image source, Getty Images

I can see Root overhauling Sachin Tendulkar's record. When I retired, I thought there was every chance that my record will be broken. I thought only the effects of captaincy and the hunger that takes out of you would stop him. I think the fact that Ben Stokes has taken over the captaincy has helped Root.

You could say Sachin is still the favourite but just. He's been so lucky with injuries. All great players who played for a long time have been lucky with injuries. You just never know what's around the corner, but it has to be something like it that could stop him. But I don't see that happening for Root to lose that hunger and ability to keep driving himself forward for the next couple of years.

The only slight hurdle in his way will be the Ashes series - there is always something happening around the series. It's in 14 months' time and there's always a story about the damage that happens or doesn't happen around every Ashes series.

I'd give Sachin 51% and Root 49%. But I would be betting on Root to do it.

Soham Sarkhel
CricViz analyst

Image source, Getty Images

There was a phase between 2017-2022 where Joe Root was particularly susceptible to lbw dismissals against pacers, almost 22% of his dismissals against pacers were of this nature.

During this time, his average interception point against pacers was 1.79m in front of the stumps. Since the start of 2023 though, this has moved to 2.17m – a difference of almost 40 cm, it has meant taking lbw out of the equation as much as possible.

Only 11% of his dismissals have been through lbw against pacers in this period – almost half of what it was between 2017- 2022.

"I think the bubbles will be coming out later for sure," says Joe Root's dad about the prospect of Joe's younger brother Billy getting married today.

Joe Root's dad Matt is on TMS right now. Click the audio icon above to listen.

Sir Alastair Cook
Ex-England captain on BBC Test Match Special

Everyone has a slight flaw in their technique. Rahul Dravid is a great example of that. He's one of the all-time greats, but you think you could nick him. There was something to target, but with Joe Root, it is even smaller than that.

The only two slight areas when nit-picking for Root is probably when the ball bounces a little bit outside off stump, he can nick it and you could also get him lbw when he aims too square.

But there are world-class areas that he operates in. 99.9% of times, he would hit them for four. That is the only two areas you could probably identify as his slight weaknesses. That is why he is just this consistent run-scoring machine. There are other geniuses who can play genius innings. But Root is a genius with consistency.

"Goochy got me a fantastic bottle of wine for breaking his record. I'll have to do something," Sir Alastair says.

Sir Alastair has just said only injury will stop Joe Root reaching Sachin Tendulkar's Test record.

Sir Alastair Cook
Ex-England captain on BBC Test Match Special

Image source, Getty Images

Root would have known [he had broken the record]. You just do, don't you? And what a shot to do it. Probably for Joe Root now, he's got bigger fish to fry.

I don't know what his exact aim is, but he's not lost that hunger and desire to keep on scoring runs. Losing the captaincy and going back into the ranks wasn't an easy thing. It's as if it's taken him to another level on consistency.

That shot against Jasprit Bumrah in India, that infamous reverse sweep, he's been averaging 75 or something since that moment. It's extraordinary numbers for a player at that kind of level. It was kind of a reality check for him and I've never seen that hunger, determination or relentlessness in anyone's batting really. He does that in an elegant way.

Marc Higginson
BBC Sport senior journalist

Image source, Getty Images

I first heard about Joe Root many moons ago - my old boss, the late Bill Allen, former editor of the Bury Times, was cricket mad and he went to watch Lancashire seconds against Yorkshire seconds.

He said Yorkshire had this batter called Joe Root who would become an England great. He said in all his years of watching cricket he'd never seen a batter as good as he was. It felt like an exaggeration. Well, Bill: you were right!

Sir Alastair Cook, the man Root has just gone past, is on TMS right now reacting to the moment.

He has stepped away from the farm to pay tribute.

Image source, Getty Images

I wonder which will go down as Root's greatest innings.

The 218 in Chennai? 118 not out to start the Ashes last year?

For me it is one of those three in a row in the final difficult months of captaincy against India in 2021.

Who knows? Maybe he could top it with that first ton in Australia next winter...