Ben Duckett was comfortably back. Everybody knew it but the third umpire wanted to make absolutely sure.

The left-hander was out of his crease for a moment but by the time Alex Carey took the bails, he was safe.

We're going upstairs for a possible stumping after Ben Duckett misses with a sweep off Nathan Lyon.

Did he overbalance and leave his ground? Australia don't seem particularly confident but we'll have a look.

Australia's boundary riders are being kept busy at the moment with Ben Duckett punching the ball confidently either side of the wicket.

Defensive maybe but it's saving runs.

Andy Zaltzman
Cricket statistician on Test Match Special

Image source, PA Media

This opening partnership is England's highest in the Ashes since Michael Carberry and Sir Alastair Cook got 85 in 2013, 24 Ashes Tests ago.

Ben Duckett showed over the winter that he is a big fan of a sweep shot - and he utilises it to perfection here.

Tossed up by Nathan Lyon and the England opener belts it through mid-wicket. There's no fielder out there, four more.

Lesley Keech: Can you ask Matthew to tell us which technology tip fixed his laptop, please? Never know when that will be useful!

Nathan Lyon is a good option here for other reasons - he averages 24.67 against left-handers and 34.51 against right-handers.

Image source, Getty Images

That is a beautiful shot from Zak Crawley!

Too full from Josh Hazlewood and the ball is driven back past him, through straight mid-on for four.

Shot of the day? It's right up there.

Sir Alastair Cook
Former England captain on BBC Test Match Special

Crawley has got England off to a good start in both Test match, under pressure both times.

Banged in short by Josh Hazlewood and it's pulled away for four!

Zak Crawley was onto it in a flash! There are two men out there but it was in the gap for another boundary.

Andy Zaltzman
Cricket statistician on Test Match Special

This is England's highest home opening partnership in an Ashes Test since Joe Root and Sir Alastair Cook who scored 68 together at The Oval in 2013.

Eng 58-0published at 12 overs

12 overs

Close! Are we calling that a drop? How harsh am I feeling? It is Steve Smith...

Not harsh enough - a half chance at best. Zak Crawley goes down early to try and reverse sweep Nathan Lyon.

Smith anticipates it at slip and moves around but the ball comes at him quickly, flicks off a combination of his finger tips and his knee. Just a single.

Nathan Lyon is coming on to bowl now. Based on CricViz's captaincy grid, which ranks each bowler's ability against each batter, Lyon is deemed as one of the best two options to bowl at Ben Duckett. Cameron Green is the other.

Zak Crawley has certainly started on the front foot, with just one of his 32 runs scored backward or square of the wicket so far.

Image source, CricViz

Seven from Josh Hazlewood's first over and it looks like we're going to see another bowling.

We are indeed. Nathan Lyon is coming on for an early bowl. We did see the ball turn for Joe Root yesterday.

What can the Aussie spinner do in his 100 consecutive Test?

After a steady start, Zak Crawley signalled the start of a more positive phase for England with a gorgeous on drive for four.

Sir Alastair Cook
Former England captain on BBC Test Match Special

Image source, Reuters

What a lovely start this has been by England with the bat.

Eng 51-0published at 10.1 overs

10.1 overs

Change of bowling, Josh Hazlewood is into the attack... and Ben Duckett crashes his first ball through the covers for four.

That brings up the fifty partnership and in typically good time. England will be delighted with this start. But it is just a start.