England end day with 128-run lead
Nightwatchman Bess top-scorer with 49
Root (45), Malan (28) & Bairstow (21) waste good starts
Buttler (34) & Curran (16) the not out batsmen
Play began at 14:45 BST, close at 19:30 BST
Pakistan 174: Shadab 56, Broad 3-38, Anderson 3-43
England trail in two-Test series 1-0
You can also watch this chat with Waqar through the TMS Facebook page.
I'm happy to inform you that Dan Norcross is wearing a rather subdued shirt today...
What speed does a fast bowler need to bowl at to be successful in all conditions?
Waqar Younis
Former Pakistan pace bowler
Pace is important, it helps. But I still believe in different bowlers for different conditions. You saw what James Anderson, Stuart Broad and Chris Woakes did yesterday. When Australia come here they struggle - they have pace but not bowlers who can hit the seam.
In South Africa and Australia you need pace to survive - if you bowl 80mph and aren't tall enough to extract bounce, then you're going to struggle.
Image source, AFP#bbccricket
Amanda Stephenson: Arrived at Headingley as an honorary member of the annual lads cricket day out. Looking forward to seeing some cricket.
Were you and Wasim Akram friends or rivals?
Waqar Younis
Former Pakistan pace bowler
Image source, Getty ImagesMyself and Wasim are friends. We had a rivalry on the field to try and do better than the other. That helped Pakistan - it was a healthy relationship. We are still good friends. We spend the lunch breaks here together, share our memories and cherish them.
There is some sport going on today - Britain's Kyle Edmund is currently taking on Fabio Fognini in the third round of the French Open, and you can follow that here.
We're going to turn our attention to Waqar Younis, who is sharing memories of his brilliant career. And, naturally, we'll keep a close eye on the weather.
Michael Vaughan
Ex-England captain on BBC Test Match Special
I got the sense last night that you can't criticise Stuart Broad because he's been in the team a long time. He got a six-for at Christchurch - but England didn't win. I remember when Darren Gough and Andy Caddick were around, people asked how you replaced them... you do. Same with Flintoff, then Hoggy and Harmy. You just do.
Image source, Getty ImagesA reminder of England's bowling figures yesterday.
Image source, BBC Sport
BBC Test Match Special
While TMS wait for the rain to clear, they are opening the floor to you good people. Want to ask the legendary Waqar Younis a question? Of course you do - just use #askwaqar or email us on tms@bbc.co.uk
Michael Vaughan
Ex-England captain on BBC Test Match Special
I keep hearing from people in the England camp that this is a team in transition when you have three of England's greatest in the team - Cook, Anderson and Broad - and then you add Joe Root, Ben Stokes and Jonny Bairstow. They are fantastic players.
The transition comes when Cook, Anderson and Broad leave the team, not now. If they get criticism, deal with it - like they did yesterday. It's the nature of international sport.
Image source, AFPIt was a good day for James Anderson yesterday, too - he finished proceedings with 3-43 from his 15 overs.
Michael Vaughan
Ex-England captain on BBC Test Match Special
Stuart wants to see England play good cricket - we all do. The reason I get frustrated is because of the amount of talent in that team. The performance levels have not been to the standard we expect.
We don't want to criticise but every now and again, they need a prod. My only concern is that they are speaking like that after one good day. You have to be careful in sport that comments can come back to bite you... but it is entertaining. And that is what we want in sport.
Image source, PAThis is what Stuart Broad had to say at the close of play yesterday, after taking 3-38.
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BBC Radio 5 live sports extra
Image source, Getty ImagesWhile we wait for the rain to clear, TMS will be putting your questions to the legendary Waqar Younis.
Get them in using #AskWaqar on Twitter, or text us on 81111.
Michael Vaughan
Ex-England captain on BBC Test Match Special
I'll also say that you have got to be careful when you choose a time to come out and attack like Stuart did last night. England are still 68 runs behind Pakistan. They haven't won this Test match yet.
The comments last night were geared as though they had won the game. He's a senior member of the team and I don't think it was the right time to plan that attack.
He should have played a nice, straight bat. He probably went on one because the frustration has been building up.
The scene at Headingley this morning.
Image source, Getty ImagesMichael Vaughan
Ex-England captain on BBC Test Match Special
If the conversations over the last few days have geed them up to go out there and prove us wrong, great.
It wasn't just me who criticised them - it happened last summer too when they were bowled out twice in 91 overs at Trent Bridge and then responded by playing really good Test cricket in the next game at The Oval, and then again at Old Trafford.
I want to know why that in English sport, we have to criticise and get to a low point before there is a response.
Here's some more from Michael Vaughan, responding to Stuart Broad's comments last night.
England bowler Sam Curran, speaking to Test Match Special: "Tom [Sam's brother, who made his Test debut in Australia] gave me a call last night. He was very happy for me.
"He gave me his experiences and his tips. Obviously I'm the one that's on the field at the time but it's very special for Tom to have experienced it before me.
"My mum is down here as well so that was pretty special. My brothers might come over in the next couple of days so it's a very exciting time for my family."
Michael Vaughan
Ex-England captain on BBC Test Match Special
We lambast sportspeople who come out with cliches, so it is good that Stuart has got it off his chest. A private conversation is a private conversation and it will remain between myself and Stuart.
I just look at performances and over the last year they have lost eight Tests in 15. They played poorly in the Ashes - losing 4-0, lost in New Zealand, lost to a young West Indies side at Headingley last year.
The reasons why I said they should consider it [dropping Broad] is that I felt the England Test team needed to ruffle a feather or two. It has been very comfortable for a long period of time and one of the options might have been to break up the senior bowling pair.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
In bowling Pakistan out for 174 and then reaching 106-2, there was an intensity, energy and hunger - everything England did not have in London.
Even on the day before this Test began, you could see that England skipper Joe Root was really up for this.
In the morning, when I was out there for the toss, it was clear he couldn't wait for the action to get under way. He wasn't angry or defensive, he just wanted to set the record straight.
And, with the way his team performed, they have begun to do that.