Jonathan Agnew
BBC cricket correspondent on Test Match Special

Steve Smith does most of the captaincy when Pat Cummins is bowling and as a batter he must think this is a bit too easy at the moment.

Zak Crawley twirls the bat in his hand. Pat Cummins gives the ball a polish on his trousers before he spins on his heels and bounds in.

Crawley finishes the over by working the ball square to keep the strike.

Five runs added to England's total.

Scott Clark: Today I will mostly be living in fear of the yellow breaking news banner on the BBC's live cricket feed...

Phil Tufnell
Former England spinner on BBC Test Match Special

I've been in these situations before and you just want a settling hour so people aren't scrambling around.

Australia captain Pat Cummins will bowl the second over of the day. His first ball strays on to Zak Crawley's legs and the England opener confidently whips to mid-on region for a couple.

Jonathan Agnew
BBC cricket correspondent on Test Match Special

England have got five from that over without breaking sweat.

Australia need a rethink. They have to put some pressure on today.

Swing for Mitchell Starc from his third ball but a thick chunk of bat saves Zak Crawley from a threatening lbw appeal.

Three more singles off the over. Solid start from England's opening pair.

Phil Tufnell
Former England spinner on BBC Test Match Special

You can't just expect to bowl wicket-taking deliveries all the time. Sometimes you have to build pressure by stopping the scoring.

Phil Tufnell
Former England spinner on BBC Test Match Special

That is too easy for England.

A single a piece from Zak Crawley and Ben Duckett from Mitchell Starc's first two deliveries met with loud cheers from the Headingley crowd.

Mitchell Starc is at the top of his bowling mark

Zak Crawley is on strike.

Take a deep breath.

Here we go.

Sir Alastair Cook
Former England captain on BBC Test Match Special

I am hoping the heavy roller which England had on day three, and then they had on day four, will just flatten it out and take some pace out of it. There is still plenty there and some good carry. You can see that from where the wicketkeepers Jonny Bairstow and Alex Carey are taking the ball.

Image source, Getty Images

Ben Duckett and Zak Crawley now average 49.93 opening the batting together in Test cricket for England.

Only Andrew Strauss and Marcus Trescothick average more as an opening pair for England since 2000 from those who have batted together for a minimum of 18 innings - the total partnerships for Crawley and Duckett.

England bowler Stuart Broad talking to BBC Test Match Special: "It is a big opportunity. When you win the toss and bowl and you're chasing 250 that is something that you're targeting. We were delighted to get through that little session last night and even though we didn't get a lot of cricket yesterday, ultimately it was a fantastic day for us to set this game up.

"You have to play well to chase 250 but this is one the quickest outfields I've ever played on in my career so I think you can knock a few runs off for that.

"We know how good the Aussies are as a bowling attack but we've got full belief in what we've got.

"Headingley does serve up different conditions and generally if you get overheads it can swing around, particularly with the new ball, but I don't think we can see that as a negative and look too much into that. We've just got to pounce on any loose balls and try and play in an attacking style today.

"I think the attacking mindset will stay today. It is almost like playing 50-over cricket today and being busy. If you just stand and prod around you can nick the ball on this pitch so be brave and fearless and go get these runs."

Sam Drury
BBC Sport cricket writer at Headingley

The atmosphere is even building in the press box where Saturn 5 by the Inspiral Carpets is blaring out...

Andy Zaltzman
Cricket statistician on Test Match Special

England have scored 55.0 runs per wicket in fourth innings under Stokes & McCullum, a period which has included three of their eight highest successful fourth-innings run chases.

Over the previous seven years, they averaged 22.7 runs per wicket in fourth innings. Australia, as a bowling team, have averaged 25.6 runs per wicket in fourth innings.

But remember: stats do not tell us what will happen. Stats might pretend that they can tell us what will happen. Do not believe them. They have a tendency to mislead.

Thank you for all your tweets and messages for the Daily ZaltzQuiz. Here's Andy with the answer.