Postpublished at 00:43 Greenwich Mean Time 7 January 2018
TIm Paine is the new man in.
That was a nice delivery from Curran, just nipping back in at Marsh, who hadn't quite settled down from his century celebrations.
Image source, Getty ImagesSummary
Root 42*, Bairstow 17*
Two wickets for Lyon
Aus 649-7 dec - lead of 303
S Marsh 156, M Marsh 101
Moeen 2-170, Crane 1-193
Australia lead five-Test series 3-0
Day five starts at 23:30 GMT
Postpublished at 00:43 Greenwich Mean Time 7 January 2018
Image source, Getty ImagesPostpublished at 00:43 Greenwich Mean Time 7 January 2018
Glenn McGrath
Ex-Australia pace bowler on BBC Test Match SpecialA little bit of seam movement - it just came back and got through Mitch Marsh. There's still a little bit in this pitch with the new ball.
WICKETpublished at 173.2 overs
M Marsh b Curran 101 (Aus 544-5)
And now Mitch Marsh is out!
The ball after reaching his second Test century, Mitch Marsh has been dismissed. The ball from Tom Curran keeps low and it foxes Marsh. It goes through his attempted shovel forward and nips back, knocking the stump out of the ground.
A fine innings comes to an end.
Image source, ReutersPostpublished at 00:41 Greenwich Mean Time 7 January 2018
Simon Mann
BBC Test Match Special commentatorThey were celebrating in the middle of the pitch together and there could have been a run-out. Eventually he realised and touched down for the second run.
Image source, Getty Images
100 for M Marshpublished at 173.1 overs
There it is!
Mitch Marsh pushes the first ball of the over away and roars as he runs down the pitch. He and Shaun stop to celebrate in the middle of the pitch before realising that there's a fielder advancing on the ball. They finish the second run before Marsh raises his bat and helmet to the dressing room, who are on their feet.
There's enough time for another cuddle with his brother.
Image source, Getty ImagesPostpublished at 00:39 Greenwich Mean Time 7 January 2018
Right then - Mitch Marsh is on 99. He's being made to wait by Joe Root, who spends an eternity setting the field, before he throws the ball to Tom Curran.
Postpublished at 00:38 Greenwich Mean Time 7 January 2018
Graeme Swann
Ex-England spinner on BBC Test Match SpecialThe wicket has got a crusty top on it already. The England batsmen are going to have to find a way of coping with Lyon.
Aus 542-4published at 173 overs
Lead by 196
Sharp spin there for Moeen as he turns one past Shaun Marsh's outside edge. Nathan Lyon, watching on from the dressing room, just sits up a little bit straighter.
That's a tidier over from Moeen, and Marsh plays out a maiden accordingly.
Postpublished at 00:35 Greenwich Mean Time 7 January 2018
Drinks over and done with, it'll be Moeen to continue. Shaun Marsh is on strike, with brother Mitch at the other end on 99.
Postpublished at 00:35 Greenwich Mean Time 7 January 2018
For those of you wondering how hot it is - it's currently 40 degrees, and it's not got to midday yet.
Postpublished at 00:33 Greenwich Mean Time 7 January 2018
Dan Norcross
BBC Test Match SpecialAn absolutely splendid straight drive from Mitch Marsh. Australia are motoring now and hunting a declaration. We could see England batting soon after lunch.
drinks break Aus 542-4published at 172 overs
M Marsh 99, S Marsh 125
A nice ball from Stuart Broad, beating Mitch Marsh outside his off stump, before Marsh drives him down the ground for a couple. That takes him into the nineties.
And that'll be four! Broad drops short and it's so easy for Mitch Marsh to lean back and smack him away to the boundary. Oh, and then Marsh absolutely nails a thrash down the ground that whizzes for four. That takes him to 99.
It'll be time for drinks, too.
From the press boxpublished at 00:27 Greenwich Mean Time 7 January 2018
Aus 532-4published at 171 overs
S Marsh 125, M Marsh 89
Short and wide from Moeen, but Shaun Marsh can't quite connect as he swings and picks up a single. Jonny Bairstow then abandons his gloves and goes sprinting down towards point to pick up a push from Mitch Marsh, and gets a deserved round of applause from the SCG. No mean fear, going after the ball in that heat.
A couiple of singles round off Moeen's over.
get involved Get Involvedpublished at 00:23 Greenwich Mean Time 7 January 2018
Text 81111
Looking forward to the 4th new ball. It will be utter havoc.
Eddie F
Aus 528-4published at 170 overs
Lead by 182
Stuart Broad, on 399 Test wickets, comes running in, knees pounding, and watches his second ball get clonked away for four by Mitch Marsh. The ball just flies off the bat as Marsh swings his arm and threads the ball through the field.
Four more! A despairing dive on the boundary can't cut off a pull shot from Marsh Jr.
How's stat?!published at 00:19 Greenwich Mean Time 7 January 2018
Andrew Samson
BBC Test Match Special statisticianJames Anderson has now bowled 1,239 maidens in Test cricket, equalling Derek Underwood's England record.
Among all seam bowlers, only Glenn McGrath has bowled more - 1,471.
Image source, Getty ImagesPostpublished at 00:17 Greenwich Mean Time 7 January 2018
James Anderson, after a four-over spell that conceded just four runs, is going to take a well-deserved breather.
Here's Stuart Broad, removing the ice towel from around his neck.
Image source, Gettget involved Get Involvedpublished at 00:17 Greenwich Mean Time 7 January 2018
#bbccricket
Adam Oldroyd: England sinking further and further into the Marshes!
Aus 519-4published at 169 overs
M Marsh 78, S Marsh 123
The Marsh brothers steal a quick single and Jonny Bairstow absolutely tears around from behind the stumps to get hold of the ball. He shies at the non striker's end, which Shaun Marsh is running towards, and just misses! Had he hit, that would have been gone.
That's good work from Bairstow - he was so quick to get the glove off and then pick up and throw in one, swift movement.