That's a stunner of a ball from Mohammad Abbas, the ball jagging away from the bat at the last second, and Sam Curran just about avoids getting a nick on it.

Wisely, Curran works a single, and Jos Buttler lets the final ball of the over nip past the bat.

Image source, Reuters

Jonathan Agnew
BBC cricket correspondent on Test Match Special

That was a little bit loose. I thought Curran had tightened up for the night. I suspect Buttler might tell him to now.

A bit of chin music for Sam Curran, who wisely whips his head out of the way of the ball.

That inside edge is coming in handy for Curran - that's four! It's a bit of a wild swing ta the ball, but there's enough meat on it to evade Sarfraz and go tumbling down to third man.

John Wallace-Howell: This is England's problem. We get in good positions but we're not ruthless enough. Broad can say whatever he likes but our batsmen haven't done enough. Too many starts not converted.

Hasan Ali swings the ball past the outside edge of Sam Curran's bat, before another inside edge brings the Surrey youngster a single.

Hasan Ali wants the ball changed.

The umpire puts is through his little measuring device, and says it's fine.

As you were.

Jonathan Agnew
BBC cricket correspondent on Test Match Special

It should be a good day tomorrow. England could and should have Pakistan in serious trouble by the close of day three.

Image source, Getty Images

Sam Curran is no mug with the bat - he's got 10 first class half-centuries from 38 matches, and a batting average of 27.18.

He keeps out five tidy deliveries from Mohammad Abbas, before working a leisurely single off his pads.

We've got a fine array of podcasts to keep you entertained into the evening.

• Fans of Jimmy Anderson, Greg James and Felix White will enjoy the Tailenders podcast
• Then there's The Doosra podcast, our new programme which focuses on South Asian cricket
• If you missed Waqar Younis' Q&A on TMS esarlier this morning, you can catch it here
• And, finally, don't miss this incredible true-life tale of heroism and spirit from 16-year-old cricketer Waleed Khan here

Runs for Sam Curran! The left-hander is off the mark as he gets a thick inside edge on an inswinger from new bowler Hasan Ali.

Jos Buttler then blocks his way through the rest of the over.

Dan Norcross
BBC Test Match Special

Mohammad Abbas is an awkward customer to face in the late evening.

The first ball Sam Curran faces in Test cricket is aimed towards his pads, and the youngster gets his bat down and defends. He sees off a Mohammad Abbas maiden.

This is Curran's last day as a teenager - he turns 20 tomorrow.

Andrew Samson
BBC Test Match Special statistician

Sarfraz Ahmed is up to five dismissals in the innings. It's the third time he's done that in his career and all three times were against England.

Image source, Getty Images

Mohammad Amir zips through a respectable maiden.

Just six overs left in the day.

Michael Vaughan
Ex-England captain on BBC Test Match Special

Abbas is going to bowl full and between 75 to 80mph. His general mode of dismissal is lbw or feathers behind. You almost try to encourage him to bowl short by coming out of the crease. Then if it hits you normal height around the knee roll, you won't be out lbw as it'll be going over.

Image source, Getty Images

Sam Curran is out for his first bat in Test cricket, although he's at the non striker's end.

That means he gets to watch a fine delivery from Mohammad Amir swing past the bat of Jos Buttler.

Dan Norcross
BBC Test Match Special

That's a delicious ball from Mohammad Abbas. A great bit of bowling.

Michael Vaughan
Ex-England captain on BBC Test Match Special

Oh that's a beauty. Angled in and seaming away. It's actually a bit of a worrying sign for Pakistan that this new ball has moved around.

A bouncer from Mohammad Abbas, and Jos Buttler tickles it around the corner for a very leisurely single.