Can we rewind back to 12:15 please?

Because they didn't know if Archer was fit either! He has a side issue.

Steve Urry: WHY OH WHY didn't they choose Archer - Give Jimmy another week to recover - daft and entrenched decision that could lose the Ashes.

OK admit it. You're all panicking.

Jimmy Anderson tore his calf playing for Lancashire against Durham on July 2.

He was in a race to be fit for this game, having sat out of the Ireland win.

The scan could come back all clear but the participation of England's all-time leading wicket-taker in the rest of this game is in serious doubt.

I'm going to interrupt the review of the session with some worrying news.

James Anderson only bowled four overs this morning and England say he is going for a scan this afternoon after feeling tightness to his right calf.

That is the same calf he injured earlier in the season playing for Lancashire and ruled him out of the Ireland Test.

Uh oh.

And when Chris Woakes chipped in with the wicket of Usman Khawaja things were looking really good for England.

Australia were 35-3 after 14.1 overs of the first session of the first Ashes Test.

Stuart Broad had this place bouncing early on.

After getting David Warner out, he had Australia's other returning opener Cameron Bancroft caught at slip...

It was a hectic start to this Ashes series.

With Edgbaston boisterous, David Warner should have been out, then wasn't out and then was out when he shouldn't have been.

The England fans didn't hold back when sending Warner on his way.

Michael Vaughan
Ex-England captain on BBC Test Match Special

That's an even session. This looks like a 250-par wicket.

Thanks Amy.

The first half of that session was very good for England. The second less so.

Let's recap what went on...

Right, that's me done for a bit.

Here's Matt Henry.

Lee Fergusson: Pretty evenly poised so far.

Geoffrey Boycott
Ex-England batsman on BBC Test Match Special

England might be happy at lunch but at the back of their minds will know it could have been better and the let the pressure off.

Applause for Steve Smith as he makes his way up to the dressing room, and Pat Cummins is straight in there with a bum pat to say congratulations.

He's on 23, Travis Head is on 26, and Australia look a touch more comfortable.

Alison Mitchell
BBC Test Match Special

England weren't able to ram home the advantage there.

Travis Head safely pats the ball back at Moeen Ali and then makes his way off.

This handy partnership is worth 48 runs, and it's more than helped Australia recover from 35-3.

Stokes was on 5 live earlier this week and he said how difficult he finds it to switch his batting brain 'off' and bowling brain 'on', particularly when he's batted to the end of an innings.

Here's the last ball before lunch...

Aleem Dar is hovering by the bails but he decides Moeen can squeeze another over in.