Postpublished at 00:08 Greenwich Mean Time 5 January 2018
Simon Mann
BBC Test Match Special commentator
That was a straightforward chance at this level - even at club level.
Warner 56, Khawaja 91*, Smith 44*
Smith rides luck in stand of 107*
Eng 346: Root 83, Malan 62, Curran 39
Cummins 4-80, Hazlewood 2-65
Day three starts at 23:30 GMT
Australia lead 3-0 in five-Test series
Amy Lofthouse, Jack Skelton and Saj Chowdhury
Simon Mann
BBC Test Match Special commentator
That was a straightforward chance at this level - even at club level.
Michael Vaughan
Ex-England captain on BBC Test Match Special
That's a goober.
Dolly!
Tom Curran goes to loft Nathan Lyon over the top but doesn't get a hold of the shot and it's flying straight to Pat Cummins at mid-on.
But the big quick shells it!
#bbccricket
Moeen takes a single off the first ball before Tom Curran somehow manages to fend a ball away from his face. He ducks but keeps his bat up like a periscope, and the ball hits the middle of the bat and flies away, rather aerially, for a single.
That's nice from Moeen, driving Josh Hazlewood back over his head for another couple, but a swish at a short ball is not quite as pretty. An outside edge then flies past the slips for a boundary.
Graeme Swann
Ex-England spinner on BBC Test Match Special
Moeen Ali is a very fine batsman but he's making the same mistakes again and again facing Nathan Lyon. He's had six weeks to work at this.
Lyon wants the batsman to plant his foot front and play away from his body and that's what Moeen has done there yet again.
Shot! Dearie me, that's a lovely looking boundary from Tom Curran as he shuffles out of his crease and carves Nathan Lyon through the covers.
A furious cut brings him a couple before there's a half-appeal for a stumping. Curran defends and walks away, Tim Paine knocks the bail off but Curran is in his crease. Curran had his back turned, actually, but the bat was in. Bit of nonsense from everyone involved there.
Graeme Swann
Ex-England spinner on BBC Test Match Special
England not using the nightwatchman last night is one of the most idiotic things I've seen in a long time. Absolute stupidity. A brand new ball that's swinging and a shadow that's across the pitch. No reason there for the batsmen to go out.
I've no problem with Jonny Bairstow standing up to go out. I've got a problem with the team and the coach not telling him to sit down. James Anderson has done it for years - send him out there.
Shot! Tom Curran plonks his front foot down the crease and batters a drive down to teh boundary. He hit it hard and sub fielder Jackson Bird, leaping at mid-off, could only get half a hand on it. Go hard or go home, as they say.
Another lovely drive from Curran, high hands, weight balanced nicely, brings him another couple of runs before he flicks off his pads for a single. Hazlewood looks a tad miffed.
What can't Steve Smith do? Well, he had a hit with tennis player Milos Raonic - the 2016 Wimbledon finalist - and he didn't look quite so secure when dealing with the Canadian's big serves. So that's something.
There's a patch of rough that's built up right outside Tom Curran's off stump, and Nathan Lyon is sending delivery after delivery into it. Curran gets a single before Moeen pushes forward loosely, and the ball spins past the outside edge and into Tim Paine's gloves.
Moeen 15, Curran 6
Josh Hazlewood, rather predictably, goes short to Moeen first up, and he ducks it. Hazlewood bends his back and gets one to rise up into Moeen's ribs. Moeen flaps and fends at the ball, dropping it down under his nose, and Cameron Bancroft comes jogging in to field it and offer a few words of advice.
That's better from Moeen, pressing forward, bat straight, and he defends into the covers to see out a tricky maiden.
Text 81111
Well that’s Steve Smith’s score reached at least...
James, Nottingham
Mitch Starc is going to take a breather - here's Josh Hazlewood.
Another few singles are exchanged to start the over before Tom Curran gets beaten by another fine delivery that turns past the outside edge. There's plenty of noise around the bat - when isn't there when Tim Paine is involved? - as Curran presses forward and an inside edge drops just short of short leg.
#bbccricket
Tom Curran's highest first-class score is 60. So, you know. Positives. And he got that when he was opening the batting.
Moeen and Curran exchange singles, before Curran ducks himself under a Mitch Starc 90mph bouncer. Nice little welcome to the crease for Curran, there.
Stephan Shemilt
BBC Sport in Sydney
Since Melbourne, Steve Smith hasn't been able to catch a cold. He dropped Cook twice there, and put down Malan yesterday. Now he's taken a physics-defying worldie. England's tail exposed.