Postpublished at 03:05 Greenwich Mean Time 7 January 2018
There is a cloud in the sky!
Parts of the SCG are suddenly, and very briefly, in shade, greeted by cheers from the baking crowd.
Summary
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 03:05 Greenwich Mean Time 7 January 2018
How's stat?!published at 03:04 Greenwich Mean Time 7 January 2018
Andrew Samson
BBC Test Match Special statisticianBrothers both reaching 100 in the same Test innings with the other brother batting at the same time:
- Ian & Greg Chappell - Australia v West Indies, Bridgetown, 1973
- Ian & Greg Chappell - Australia v New Zealand, Wellington, 1974
- Mark & Steve Waugh - Australia v West Indies, Kingston, 1995 (below)
- Shaun & Mitchell Marsh today
Image source, Getty ImagesPostpublished at 03:03 Greenwich Mean Time 7 January 2018
Simon Mann
BBC Test Match Special commentatorThis is horrible.
Aus 639-7published at 192 overs
Lead by 293
Pat Cummins is just trying to flay tennis shots to all parts - another horrendous-looking one chips into leg for a couple.
Another huge hoik at the last and he gets an inside egde past his leg stump for four.
Stuart Broad is not amused.
Postpublished at 02:59 Greenwich Mean Time 7 January 2018
Stuart Broad is going to continue...
get involved Get Involvedpublished at 02:58 Greenwich Mean Time 7 January 2018
#bbccricket
Evan Samuel: England: three tons in the series. Australia: three tons in this innings. I think I've spotted something here...
Postpublished at 02:57 Greenwich Mean Time 7 January 2018
Simon Mann
BBC Test Match Special commentatorEvery time they focus on Steve Smith he looks like he's wondering why he's not still batting out there.
Aus 629-7published at 191 overs
Paine 32, Cummins 11
Crane drags it down and Cummins smashes it away through mid-wicket for four.
There's another - Crane pitches it up and Cummins agriculturally flays it over long-on.
Steve Smith is out of his training gear and into his whites in the Aussie dressing room. Declaration nearing?
Postpublished at 02:54 Greenwich Mean Time 7 January 2018
Mason Crane back into the attack after drinks.
It's so hot in Sydney this is pretty much a literal baptism of fire for the debutant.
get involved Get Involvedpublished at 02:53 Greenwich Mean Time 7 January 2018
#bbccricket
Gary Farley: Give the Aussies another hour and they won't have to bat in the first Test in England in 2019.
Postpublished at 02:51 Greenwich Mean Time 7 January 2018
Dan Norcross
BBC Test Match SpecialIt's so hot that the cold water in the lavatory is coming out warm.
Postpublished at 02:51 Greenwich Mean Time 7 January 2018
Michael Vaughan
Ex-England captain on BBC Test Match SpecialI can't remember playing in conditions as hot as this.
Postpublished at 02:51 Greenwich Mean Time 7 January 2018
Photographer Ryan Pierse snapped this heat stress tracker out in the middle of the SCG at lunch.
The temperature out there is 57.6C.
Image source, Getty Imagesdrinks break Aus 618-7published at 190 overs
Lead by 272
Cummins ticks off his pads to get off the mark, before Paine edges away for three, making Cook run a long way to fetch a ball that was never reaching the rope.
Another single off the last to Cummins. Stuart Broad may have to wait until the New Zealand series to get that 400th Test wicket, not sure how much longer he can bowl in this heat.
And because of the heat - here's an early break for drinks.
Postpublished at 02:46 Greenwich Mean Time 7 January 2018
Dan Norcross
BBC Test Match SpecialHe'll be very disappointed with that...
How's stat?!published at 02:46 Greenwich Mean Time 7 January 2018
Andrew Samson
BBC Test Match Special statisticianMitch Starc averages 8.8 in the series, batting at eight.
Aus 613-7published at 189 overs
Pat Cummins is the new man in but won't be facing yet at the batsmen crossed. Paine plays out a couple of dot balls.
Postpublished at 02:43 Greenwich Mean Time 7 January 2018
Ebony Rainford-Brent
Ex-England batter on BBC Test Match SpecialStarc's little cameo suggests Australia want about a 300 lead - and definitely make sure they won't have to bat again. The pitch has started playing a few tricks.
Postpublished at 02:42 Greenwich Mean Time 7 January 2018
Dan Norcross
BBC Test Match SpecialMitch Starc's poor, poor series with the bat continues!
WICKETpublished at 188.4 overs
Starc c Vince b Moeen 11 (Aus 613-7)
Fun while it lasted. Starc tries to make it back-to-back maximums but doesn't get hold of this one like the last.
The ball goes straight up, James Vince steadies himself and makes no mistake.
Image source, PA