No hat-trick for Ollie Robinson.
Carey and Head need to dig in for the next few overs to stem the flow of wickets.
Meanwhile, Mark Wood is steaming in at the other end and sending down some short stuff to Carey.
This Test has come to life all of a sudden. You can hear the Barmy Army chirping up as well at the Gabba.
Carey has faced eight balls but isn’t off the mark.
Australia 5-196, lead by 49 runs
Huge drama at the Gabba, with Cameron Green out for a golden duck after being bowled by an Ollie Robinson in-swinger.
He’s been undone like that in Sheffield Shield before – notably against a medium pace delivery from Marnus Labuschagne a few weeks ago.
The English are up and about.
Alex Carey will face the hat-trick ball.
David Warner has fallen six runs short of his 25th century.
Ollie Robinson gets the breakthrough as Warner chips a ball into the off side. Ben Stokes looks a little ginger running to the ball but gets there in the end and pulls off a nice catch.
Two new batsmen – Travis Head and Cameron Green – are in the middle. What a perfect chance to show their worth and value to the middle order.
Travis Head gets his chance at No.5. Given the nod over Usman Khawaja, the 29-year-old finds himself needing to prove his spot in the team. If Head can’t get a score in the first two or three Tests, his Test career could be done.
Second ball, Head flashes nervously outside the off stump and doesn’t get anywhere near it.
Wood, in his 14th over, is happy to dig a few in short to Head’s ribs and make life as uncomfortable as possible.
Head gets off the mark with a single into the leg side.
Australia 3-194 off 55 overs
Australia lose 2-23 before tea after a brilliant first few hours with the bat.
David Warner is still there on 94 and creeping towards a 25th Test century.
England will be happy to have snared a few breakthroughs there but know that today’s final session could make or break the Test.
Rory Burns won’t be saying a whole lot to his teammates after giving Warner a life earlier in the day.
Australia 3-193 after 54 overs
England’s plan has worked a treat as Smith goes for 12.
After punching Wood down the ground for a boundary, Smith gets a feather through to wicketkeeper Jos Buttler while on the back foot.
He doesn’t look very pleased at all. Mark Waugh labels it a “lazy” shot.
Australia are 3-189 from 53 overs. Warner is on 90.
Mark Wood hits Steve Smith on the pads but DRS shows it was hitting him just outside the line.
Next ball Smith clips one off his pads into the leg side and runs straight away. He dodges Wood on the way down and had the throw been good, he would have been out by a metre. That could have been major drama for the Aussies.
Smith has a slightly poorer record against express fast bowling, so it will be interesting to see how he handles Wood here, who just clocked 148km/h, which is impressive given he’d sent down 12 overs.
While that was the third time in five Tests Leach has dismissed Labuschagne, Warner is showing no signs of slowing up against the tweaker.
He gets down on one knee again and slaps him into the leg side for a boundary.
Leach then drags two more down the leg side, one of which Warner knocks into the outfield for a single.
Meanwhile, Smith gets a thick outside edge after advancing down the pitch. He is also desperate to not let Leach settle.
Leach has 1-62 from eight overs, while Australia have creeped up to 2-183 after 50 overs.
Jack Leach is struggling to find his rhythm as Labuschagne advances and crunches one back over his head
“This is grievous bodily harm against Jack,” says former Australian spinner Kerry O’Keeffe on Fox.
However, very next ball, Labuschagne tries to cut one but doesn’t control the shot and is caught for 74.
Labuschagne gives himself room and doesn’t middle that one.