Simon in Harbone: Bess the next Steve Smith. Picked as a spinner, goes on to be world number one batsman.

Just saying.

Jonathan Agnew
BBC cricket correspondent on Test Match Special

What a brilliant partnership, they have played positively, bravely and it has given just a flicker of hope.

What a shot to end the day!

Full from Mohammad Amir and clattered by Dom Bess gloriously through the covers for four.

England end the day with a very slender lead, and it's all down to a wonderful 125-run partnership between Bess and Jos Buttler.

Ooft! Big swing and a miss from Dom Bess to Mohammad Amir...

Jonathan Agnew
BBC cricket correspondent on Test Match Special

It's one of those strange situations where both teams want to go off now.

Everyone's taking their time here, trying to make this into the final over of the day.

It's been a long day...

Eleanor Oldroyd
Presenter on BBC Radio 5 live

Buttler and Bess. Sounds like a high-class carpet company. Or an artisan cheese-makers?

A tidy over, ending with an absolute beauty from Faheem Ashraf that beats Jos Buttler as he pushes his bat forward.

Just three overs until the new ball, which these two will have to contend with in the morning.

Phil Tufnell
Ex-England spinner on BBC Test Match Special

Dom has just come down the wicket to chat to Buttler. "Just stick in with me please, Jos!"

Mohammad Amir jags one back in to Jos Buttler, but it strikes him high on the pad and Amir stops his appeal before he's really started it.

Andrew Samson
BBC Test Match Special statistician

Bess is the third youngest to score fifty on debut for England, after Denis Compton and Haseeb Hameed.

Image source, Reuters

Fifteen minutes left in the day, and Mohammad Amir is going to have one final attempt at ending this partnership tonight.

Phil Tufnell
Ex-England spinner on BBC Test Match Special

Pakistan are worn out, they have had to work a bit and so you should because it's Test cricket. Thank goodness England have found a partnership.

Image source, Getty Images

Shot! Four!

Mohammad Abbas makes a despairing dive at fine leg, but Jos Buttler's pull shot is powerful, and it beats him and rolls into the boundary rope. Mickey Arthur is not happy.

Andrew Samson
BBC Test Match Special statistician

Dom Bess' fifty came from 93 balls with seven fours.

He's the 10th number eight to make fifty on debut for England. Liam Dawson is the highest scorer with 66 not out.

Image source, Reuters

50 for Besspublished at 74.1 overs

74.1 overs

Eng 221-6

A half-century, on Test debut, with England in an absolute mess.

Well played, Dom Bess. Well played.

Rich H: Jos Buttler allowed free reign to play ‘his way’ in Test cricket. Clearly no one expected that to be a controlled, mature and slowly accumulative innings. Regardless of the inevitable result Buttler solves a massive middle order problem. Bairstow to open 2nd Test?

Bairstow did open for Yorkshire against Essex in a County Championship match this season.

There's a gentleman in the Lord's crowd in a Liverpool hat, looking a tad nervous.

Jos Buttler sees out the remainder of Mohammad Abbas' over before wandering down for a few words of wisdom with Dom Bess. He'll take strike on 49.

Phil Tufnell
Ex-England spinner on BBC Test Match Special

It's a crucial little period because if Pakistan get one now there are only a few overs until the new ball. I don't like the sweep shot though, that's the only way you are going to get out to the spinner from round the wicket. Pakistan have faded a bit, they have lost their exuberance.

Mohammad Abbas goes short, and Dom Bess pulls him out towards the boundary.

The fielder darts around though and Bess, on 48, has to settle for a single..