Anglo American Gent: I live in northern Michigan. Right now it's -15C and gets as low as -30C. If they fancy a change, the England team are welcome to come and cool off after two days in 42C!

Yes, Glenn. But Alastair Cook doesn't sweat*. The two duly cancel each other out for two balls, before Cook pushes a nicely-timed drive through the covers for a couple.

Another check drive is stopped well by the diving David Warner and Cook jogs through for one.

*Surely even Cook sweats in this heat?

Glenn McGrath
Ex-Australia pace bowler on BBC Test Match Special

Hazlewood's a country boy and it gets pretty warm. It's just another day at the office for him.

Josh Hazlewood will take the new ball alongside Starc...

Starc breaks the 90mph barrier and gets Stoneman playing and missing at a full, wide yorker.

Stoneman does get the middle of the bat on the last one, defending well.

Cook won't let that first ball faze him though as he clips off his pads in typical Cook fashion to get off the mark.

Mitchell Starc to Alastair Cook first up...

Jeez. It's a peach, moving away as Cook plays and misses.

Dearie me. Good luck Alastair Cook and Mark Stoneman.

The man in the full suit on the roller rolls off the field and here come Australia, quickly followed by England's openers.

Will Australia maraud their way through England? Or will we witness one of the great rearguard actions to save a Test?

Let's find out...

Image source, Getty Images

Ebony Rainford-Brent
Ex-England batter on BBC Test Match Special

Mitch Starc has just bowled his first warm-up delivery - it's a yorker that's nailed the stump out of the ground. This could be fun.

If any of you have been following this live text for the last hour or so...we've deleted the Stuart Broad 400 Test wickets graphic.

Save it for New Zealand, yeah?

Ah, yes. Steve Smith may well be thinking his bowlers can wrap this up today. England face an almighty task to save the Test and escape from Australia with 'just' a 3-0 series defeat.

Meanwhile, a man wearing a full suit is currently applying the roller to the pitch. I think everyone in Sydney has lost their minds in this heat.

Ebony Rainford-Brent
Ex-England batter on BBC Test Match Special

You're positive!

Simon Mann
BBC Test Match Special commentator

There are 52 overs left in the day. And then there's the extra half-hour...

So Tim Paine ends on 38 not out, with Pat Cummins hitting a brisk unbeaten 24 off 16 balls.

A final flurry that has ground down this beleaguered England side even further.

Off go Alastair Cook and Mark Stoneman, who now have to get England's second innings under way after being in the field for approximately the last 12 years. Approximately.

Ebony Rainford-Brent
Ex-England batter on BBC Test Match Special

Australia jogged off quite quickly, and Stuart Broad has yet to get off the square.

Simon Mann
BBC Test Match Special commentator

England have been humiliated in the field and now they have to come out and try, somehow, to save this Test match. It's one last effort on this tour to gain some self respect.

Image source, PA

Just a single off the last ball of the over and Steve Smith has seen enough - Australia declare with a lead of 303.

Image source, Gett

Simon Mann
BBC Test Match Special commentator

That's rather appropriate - a misfield to bring up Australia's 300 lead.

Mason Crane, round the wicket, tosses one up wide of Pat Cummins, who flicks it round the corner...

...and Mark Stoneman makes a total hash of it, allowing the ball to spin through him to the fence.

That's Australia's lead over 300.