A fast and aggressive pull shot from Travis Head races away for four. I'm not sure any England player even saw the ball.

An interesting move with Jack Leach starting things off after lunch.

He bowled one over before the break with four men on the boundary, which says ... a lot.

England's players are hovering at the boundary edge, keen to get out there and keep the wickets tumbling.

Marcus Harris resumes on 48 and Travis Head has 11.

Yeah, we're not going to talk about the batting until we really have to, Adam.

Eddie: A good session for England!! I've still never seen a ball beat the edge so many times without taking a nick.

Jack Rule: Time for Bed. Let’s hope when I wake up England are batting again.

Adam Davies: Well. If England can take another 3-70 this afternoon we have a chance to get into the tail. Still nervous about us batting again though, aren't you..?

If you missed the start of play, it was due to start a little earlier before a Covid-19 scare. It was eventually revealed that two family members and two of England's support staff had tested positive, but England all returned negative PCR tests and play could go ahead.

You can read all about that here.

Tom Sweeney: Jimmy Anderson could have had four or five wickets this morning. As much as England have been diabolical with the bat, they’ve been a bit unlucky with the ball.

Kyle Utterson: So far England have bowled great today and that wicket is no more than Anderson deserves. He's been superb. England deserve a couple more wickets. They have been brilliant this morning.

Tom-Henry Jones: Oh no, that feeling called hope is creeping back into my mind!

Jimmy Anderson hasn't had the greatest of tours so far but his spell this morning consisted of six overs, five maidens, one wicket for one run.

The wicket was Steve Smith and the run only came from a (questionable) dropped catch at slip.

*Insert goat emoji here.*

Image source, Getty Images

Despite removing Australia's key men, their sole under pressure player is the one causing England the most trouble.

Marcus Harris has had a fair amount of luck this morning including this overturned lbw decision, but made the most of it to make it through to lunch 48 not out.

Steve Harmison
Ex-England pace bowler on BT Sport

Mark Wood bowled beautifully when he first came on while James Anderson bowled to a plan. We knew if England were to have any chance they needed to get Steve Smith and Marnus Labuschagne out before lunch, and they have done just that.

The big news is that England have got rid of the pesky pairing of Marnus Labuschagne and Steve Smith.

They have Mark Wood and Jimmy Anderson to thank for that - both were excellent this morning.

Steven Finn
Former England bowler on BBC Test Match Special

It's been a good morning for England but once again lack of first innings runs is letting them down. One good partnership from Australia and they're at parity.

Thanks, Amy!

Well, that was better, wasn't it? After an eventful morning, you'd probably forgive England for being a little off the mark but they were anything but.

Oh, for 100 more runs ...

Well. In the grand scheme of this tour, that's been quite a decent morning for England.

I am very much off to bed. Ffion Wynne will keep you hardy souls company through lunch and beyond.

That'll be your lot for the first session.

England have taken 3-70 this morning.

Some magnificent time-wasting going on from Harris and Head, here.

Marcus Harris shows Mark Wood the full face of the bat and bunts a couple of runs back down the ground.

Wood pings an 88mph delivery into Harris' front pad, before another two takes Harris to 48...

Cricket Australia chief executive Nick Hockley answered questions about the final two Test Test matches in Sydney and Hobart following today's Covid-19 concerns for England.

"Clearly we are being extra vigilant as there are increasing cases in the community. But our protocols are designed for this set of events," he told a press conference.

"We’ve got very comprehensive testing regimes and the players have been absolutely fantastic. It’s ultimately about everyone taking personal responsibility.

"We’ll keep working hard to make sure, primarily, everyone is kept very safe."

There's a slightly less defensive field for Marcus Harris, who is happy enough to knock a single around here and there.