Pakistan close on 107-2, trailing England by 174
Pakistan captain Babar brings up fifty off 57 balls
Anderson has Imam caught behind for duck; Shafique nicks Leach to Pope
Pakistan spinner Abrar takes seven wickets on debut; Zahid claims other three
Duckett hits 63 off 49 balls, Pope 60 off 61, Wood 36 not out off 27
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Jonathan Agnew
BBC cricket correspondent on Test Match Special
There's an appeal but umpire Dar says no. He's unmoved there. Abrar is trying to convince his captain to review.
I want to see if there was a ruffle of dust there when it pitched, I think there was. It's a very dry pitch.
Is Joe Root in trouble here? Abrar Ahmed gets one to grip in the surface and Root is caught in front on the back foot.
The umpire turns down the appeals - but Pakistan review.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
There wasn't a single cone, a single bollard or a single 'variable speed limit' sign in the 330 mile drive up to here. The roads were gorgeous.
Alex Hartley
Former England bowler on BBC Test Match Special
I've not had a single coffee since I've come to Pakistan.
Ollie Pope goes for a reverse sweep that Zahid Mahmood fumbles at backward point and England run two to move Pope to 48.
Pope then attempts another reverse that escapes past the wicketkeeper and away for four.
Was there bat on that? No. Marais Erasmus gives it as leg byes. Pope has to wait for his half-century.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
Small crowd but enthusiastic. It's not an easy place to get to out here.
It's an extended morning session because of morning prayers on a Friday that last for an hour.
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This outfield looks quick. Ollie Pope only seems to nudge the ball into a yawning gap through mid-wicket and it races towards the boundary before being clawed back before the rope.
Time for another change as slow left-armer Mohammad Nawaz comes into the attack.
Andy Zaltzman
Cricket statistician on Test Match Special
The partnership between Duckett and Pope ended at 79 from just 10.1 overs.
#bbccricket
Simon Mahon: Loving watching Abrar Ahmed this morning. Few more exciting things in cricket than a new mystery spinner arriving on the scene.
Slightly concerned England have picked the wrong side and need an extra spinner themselves.
Joe Root gets off the mark with a drive to cover for a single.
This match now feels brilliantly poised. England have raced along as expected, but if another wicket or two falls Pakistan will feel that represents a decent morning's work.
Alex Hartley
Former England bowler on BBC Test Match Special
Lovely shot form Ollie Pope. The ball is just starting to misbehave as well, so early in this Test match.
Joe Root is the new batter to join Ollie Pope, who drives Zahid Mahmood through the covers for four. Brilliant shot.
England determined not to let the wicket check their momentum.
Vic Marks
Former England spinner on BBC Test Match Special
Gilbert Jessop can rest quietly for a few more minutes.
You don't know what a good score is. It is spinning but we don't know what a finger spinner will do.
Aatif Nawaz
BBC Test Match Special commentator
Well, Abrar Ahmed, on debut, has a second wicket. This time it is the prized wicket of Ben Duckett. He was on a bit of a tear.
Duckett lbw Abrar 63 (Eng 117-2)
Out! Babar Azam's late decision to review is vindicated as the replay shows the ball was pitching in line and going on to hit the stumps.
Ben Duckett's spritely innings is at an end. Abrar Ahmed now has two wickets on debut.
Image source, BBC SportVic Marks
Former England spinner on BBC Test Match Special
The strange thing is, it doesn't look like it's hit the glove this time.
Who'd be an umpire in this match?
Aatif Nawaz
BBC Test Match Special commentator
With two seconds to go on the clock, Babar Azam has chosen to go for the review. It's been review city this morning.
Now it is Pakistan's turn to review after an lbw shout is turned down.
Will Ben Duckett survive this time?
Vic Marks
Former England spinner on BBC Test Match Special
I think England have got a cunning plan, they are wearing incredibly large batting gloves!