Root takes two wickets in an over but Australia close on 339-5
Smith, who ends 85 not out, involved in century stands with Labuschagne and Head
Head stumped after brilliant 77 off 73 balls
Pope off the field with a shoulder injury
Tongue bowls both Khawaja and Warner
England won toss; Starc replaces Boland for Australia
Australia lead five-match series 1-0
Phil Tufnell
Former England spinner on BBC Test Match Special
They are playing it brilliantly. Khawaja has had a poke a couple of times at Jimmy Anderson, but apart from that, Australia are playing this brilliantly.
Some positive running between the wickets from David Warner and Usman Khawaja.
Given these conditions it's no surprise that they're reach keen to be watching from the non-striker's end as much as possible!
Phil Tufnell
Former England spinner on BBC Test Match Special
I don't mind Warner being a bit funky to Stuart Broad because Stuart Broad has got the wood on him. It might mess Broad's line and length up.
What's this?! David Warner goes Bazball and moves across his stumps to slog-sweep Stuart Broad!
It goes in the air towards deep backward square but lands short of the fielder. Just a single.
A few words and plenty of laughs between Broad and Warner after that.
No wickets, not too many runs but quite the start at Lord's this morning!
Jim Maxwell
BBC Test Match Special
That is a fishing expedition from Warner, he didn't need to do that.
Now David Warner has a waft outside off!
It's a nothing shot to a delivery well wide of off from Stuart Broad. The Australian will be glad to have missed that.
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I don't think I'll stop feeling incredibly nervous until Jimmy takes a trademark wicket. He's world class, but needs to do more this Test than he did at Edgbaston. Please Jimmy!
Joe, a nervous Jimmy Anderson fan
Phil Tufnell
Former England spinner on BBC Test Match Special
Khawaja has had a couple of pokes now, that in-swinger is getting him. Not quite carried. It's very difficult to move forward and dive forward at first slip.
England are getting ever closer!
Jimmy Anderson hoops one past Usman Khawaja's outside edge.
He does find the edge next ball - a genuine edge - but the ball doesn't quite carry. Pretty much on the half-volley to Joe Root at first slip. So close but not close enough for England.
Players and stewards alike were on hand to stop the protesters getting to the Lord's pitch a few minutes ago.
Jonny Bairstow actually carried one of them off the pitch.
Image source, Getty Images
Image source, Getty Images
Image source, Getty Images
Image source, Getty ImagesWarner 7, Khawaja 1
Stuart Broad ends the over with a beauty to Usman Khawaja.
The Australia opener just dangles his bat outside off and the ball nips away to beat the edge. Khawaja was a touch fortunate.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
I saw Jack Leach last night. The prognosis sounds good. He is hoping to be back bowling in October.
Phil Tufnell
Former England spinner on BBC Test Match Special
That's put it in Khawaja's mind. The batters will be loving it as well. This is a true test of an opening batter. A true test.
Good over from Jimmy Anderson. A maiden to Usman Khawaja.
England's record wicket-taker got the ball moving nicely both ways and did find the outside edge. The ball dropped well short of the fourth slip, though.
A bit of a disruption after the first over this morning as Just Stop Oil protesters made their way onto the field of play.
No damage was done to the pitch, though, and we were quickly back under way.
Play interrupted by protest
Just a single from Stuart Broad's over, clipped down to fine leg by Usman Khawaja.
Broad is excited when David Warner leaves the last ball but it's all a bit theatrical - it missed off stump by a distance.
We are back under way with Stuart Broad bowling around the wicket to Usman Khawaja.
His first delivery moves away form the left-hander, who lets it go past outside off stump, but it does stay low.
Phil Tufnell
Former England spinner on BBC Test Match Special
Let's get back to the cricket.
Matthew Henry
BBC Sport at Lord's
More boos as the protestors are carried away by security around the boundary edge.
Andy Zaltzman
Cricket statistician on Test Match Special
I guess the question arises, would Ben Foakes have dealt with that better than Bairstow? I've never seen a rugby player carry someone 50 metres off the ground.