England declare on 393-8 after Root hits brilliant century off just 145 balls
Earliest ever declaration in the first innings of an Ashes Test
Root and Bairstow (78) put on 121 for sixth wicket
Brook (32) & Stokes (1) fall after lunch to leave England 176-5
Crawley, who creamed first ball of match through covers for four, hits 61
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Eng 265-5
It's like he's never been away!
Bairstow reaches his half-century from just 58 balls, which is absolutely ridiculous when it feels like he's been "supporting" Joe Root in this partnership.
He receives an emphatic fist-bump from his Yorkshire team-mate, and he looks in the mood.
Josh Hazlewood, who has been the pick of the bowlers today, beats Joe Root with some sharp bounce.
One of those where you've done well not to nick it.
Root just nods back in respect.
Matthew Henry
BBC Sport at Edgbaston
The Hollies stand is currently singing “You’re just a *not very good* Moeen Ali” at Nathan Lyon.
Andy Zaltzman
Cricket statistician on Test Match Special
Scott Boland update: He's conceded 86 runs from 14 overs. It's the tenth time he's bowled 14 overs, but the most he previously gave away after 14 overs was 48.
Just the one respectful run from Nathan Lyon's over.
Have we still only had one maiden all day?
No words needed.
Sir Alastair Cook
Former England captain on BBC Test Match Special
Scott Boland likes building pressure and a lot of his good balls today have gone for singles.
He's certainly not used to going at sixes.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
Great running from Bairstow. He had that awful broken leg but no sign of any issue there. He sprinted the first and came back for the second.
England are really being busy.
Root 74, Bairstow 46
There's been a bit of a change of tempo since tea - which is probably hard to believe given that England were already going at five an over.
After that four, Jonny Bairstow dinks one into the leg side and sprints two, looking like he's in one-day mode.
For all the talk of Scott Boland being the key with his metronomic accuracy, England have thrown him off his length. He's conceded 86 runs from 14 overs.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
That was a half-volley, you could see it the moment it left the hand.
It was one of the more controlled drives from Jonny Bairstow. He can give it a biff but he can also do that.
That's more like it!
Too full from Boland and Bairstow clatters it to the cover boundary.
Just the two runs off Nathan Lyon's over.
How underwhelming.
Joe Root.
Good at batting.
Sir Alastair Cook
Former England captain on BBC Test Match Special
Image source, Getty ImagesThe difference between Pat Cummins and Australia's tactics in this innings so far and Ben Stokes is that England will challenge Australia to play their shots. Australia have tried to stop England playing shots.
England might play their lovely shots, but they will make more mistakes.
Root 73, Bairstow 38
Image source, ReutersThe absolute audacity to play that shot.
I love it. Keep 'em coming.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
For the first time today, Marais Erasmus raises his arms! Joe Root tried a couple of those against Ireland and they didn't come off at all but gets it first time he tries today.
He's reverse swept Scott Boland over third man for six.
Joe Root's reverse-scoop for six klaxon!!
That's how to play Scott Boland, lads.
Thanks, Tom.
And Bairstow starts with a streaky inside edge past his stumps for four!
No chance of letting me slowly settle in to my stint then. Cheers, Jonny.
As the players make their way to the middle it is time for me to take my break.
Here is Ffion Wynne to guide you through the evening session.
It was fantastic bowling by Josh Hazlewood as he tempted Ben Stokes with three length deliveries, before going a touch fuller and wider to lure the England skipper into a thin edge through to Alex Carey.