Huge moment. Cummins gets one through Root's defences and it strikes the England captain's pads.

Looks a decent shout but umpire Erasmus says not out.

Steve Smith reviews straight away...

Lyon bowling out of the shadows to Malan in the sunshine - the first loose ball in a while from the spinner as Malan rocks back and cuts it away to the fence.

Great reply from Lyon as he gets one to turn sharply from middle stump to beat the outside edge by a long way.

Unplayable that - a reminder this isn't day five in Colombo but day one in Brisbane.

Jonathan Agnew
BBC cricket correspondent on Test Match Special

The entire playing surface, other than the pitch, is in shadow now.

Floodlights on at the Gabba, long shadows on the field, even though there's still blue sky and sunshine above.

Sedate up there but tense times on the pitch. Cummins to Root, the England skipper leaving well...until he leaves one that keeps coming back and narrowly misses the off stump.

Cries of anguish from the home side. Root unmoved as he calmly plays out the final two balls of the over.

Jonathan Agnew
BBC cricket correspondent on Test Match Special

There's been some proper spin here today. We've been speaking about pace and what we've seen instead is the ball spinning sharply. I don't think either of the batsmen are enjoying playing against Lyon at the moment.

Three fielders crowd around the bat as Lyon continues to the left-hander Malan.

Remarkable turn and bite from the off-spinner on day one but the Middlesex man is equal to it so far as he plays out a maiden.

Glenn McGrath
BBC Test Match Special

This has been good, old-fashioned Test cricket today - 67 overs, 158 runs, three wickets.

England add another to the total, Malan watchful so far with just four runs from 24 deliveries.

Malan looks to swing a pull away to deep square leg, plays around it and it strikes him above the pads, resulting in a frivolous appeal from the Aussies.

Clearly not out.

Root survives another very threatening over from Lyon.

An off-spinner producing this turn on a day one pitch while the quicks struggle at Brisbane? Madness.

Dropped catchpublished at 07:17 GMT 23 November 2017

07:17 GMT 23 November 2017

Eng 158-3

Oo-er, Joe Root brings out the reverse sweep to Nathan Lyon and rather toe ends it away, harmlessly enough but a bit of a rogue shot that.

Cripes, Root nudges one away square and it clips Cameron Bancroft at short leg on the boot.

Perhaps overly harsh to use the dropped catch graphic, but hey ho...

Simon Mann
BBC Test Match Special commentator

You feel the day is in the balance - another couple of wickets and Australia will be very happy with their day's work.

Glenn McGrath
BBC Test Match Special

It's an interesting part of the day's play. The Australians have got their tail up and Nathan Lyon is getting a bit of turn.

Starc short and wide as Root gets on top of it and pulls away for a single. Much more controlled than his last effort.

Now the second extra of the series as Starc bowls a no-ball - his run-up has been troubling him.

Starc goes short but Malan drops his hands under it. A full one follows but Malan does enough to repel the attempted yorker. A leave to finish.

And that's drinks.

Phil Tufnell
Ex-England spinner on BBC Test Match Special

England have got to be careful they don't undo their hard work with a lack of concentration in the final 60-90 minutes of the day.

And it'll be Lyon to re-enter the fray, he's been the pick of the Aussie bowlers today,

For good reason, too - the off-spinner ripping one beyond Joe Root's inside edge and off his pad, the catch is taken but no bat involved.

Root then jogs through for a bye - the first extra of the series after 63.3 overs bowled! One for stat fans, that.

More menace from Lyon to the left-handed Malan, the final ball spinning past his defences as Paine whips off the bails but the Middlesex man hadn't moved.

Welcome to newly awake readers - here's what you've missed.

Alastair Cook edged to first slip early on to leave England 2-1 before Mark Stoneman and the especially impressive James Vince led a determined recovery.

Both passed 50 as they made a century stand before Stoneman saw his stumps rearranged by a rare delivery that moved from Pat Cummins.

England reached 128-2 at tea and Vince was edging towards a maiden Test century, only to just fall to a brilliant run out by none other than Nathan Lyon for 83.

Phil Tufnell
Ex-England spinner on BBC Test Match Special

I think Australia have got the ball to start reversing.