Australia close on 113-4, trailing by 162
Superb Wood dismisses Khawaja, Smith & Head to move past 100 Test wickets
Warner chops on off Woakes for 28
England 592 all out - leading by 275 - after Bairstow's sparkling 99*
Australia are 2-1 up in the five-match series
Rain forecast on days four and five
Michael Vaughan
Former England captain on BBC Test Match Special
I think it is sensible. It might have bounced into Joe Root's hands but you can't be sure so I think it is fair to give the batter a bit of leeway.
Hmmmmm. Kumar Dharmasena has decided that the ball was grounded before Joe Root took the catch.
There really wasn't any camera angles that were conclusive.
It did look like the ball bounced in Root's fingers and then rolled up, but it is so hard to tell.
Matthew Henry
BBC Sport at Old Trafford
The crowd don't really know what to make of this either.
Steve Smith is stood in his crease ready to face the next ball.
He's convinced this is not out.
Michael Vaughan
Former England captain on BBC Test Match Special
I think this could be out.
This is a massive call.
Are Joe Root's fingers under the ball?
Isa Guha
Former England bowler on BBC Test Match Special
The body language didn't look convincing.
Hello!
Steve Smith has edged Chris Woakes to Joe Root at first slip.
Has it carried? The initial celebration was subdued but Root is saying "I think that's out".
This could take a while.
Michael Vaughan
Former England captain on BBC Test Match Special
Has Steve Smith got a big innings in him? Australia desperately need him to.
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Superb tactics from England here. Let Warner get just enough runs so that he still gets picked at The Oval. Genius!
Ollie K
Trail by 215
Marnus Labuschagne looks pretty good here. He works Stuart Broad for a couple into the leg side to move 13.
He looks fidgety, which to honest is perhaps not a good sign for England.
Well that's not the right spot.
Stuart Broad goes too full and Marnus Labuschagne just pushes him back down the ground for four.
Lovely shot.
Matthew Henry
BBC Sport at Old Trafford
At the break in play Stuart Broad is pointing and inspecting the area on the pitch that is providing the uneven bounce.
He wants all of his team-mates to come and have a look.
Phil Tufnell
Former England spinner on BBC Test Match Special
If England can get one of these two the door could really open up for them.
Steve Smith defends his first ball.
Phil Tufnell
Former England spinner on BBC Test Match Special
Fantastic bowling from Chris Woakes, he gave David Warner a real working over the top of off stump. He played and missed a couple of times but this time was indecisive and chopped on.
Warner b Woakes 28 (Aus 54-2)
BOWLED HIMMMMM!
Brilliant stuff from Chris Woakes. He homes in on fifth/sixth stump line and has Warner defending and then playing and missing.
Warner feels he has to play at this one and gets a thick inside edge onto the stumps.
Woakes just keeps on delivering.
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Terry from Hornchurch (16:34 BST) Uneven bounce works from home on a Friday.
Nick - Lisbon
Trail by 225
Hmmm. Another one keeps slightly lower on Marnus Labuschagne but he's able to get to get it through point for a single.
The sun is shining over Old Trafford. We hopefully shouldn't have any problems with the weather today.
Phil Tufnell
Former England spinner on BBC Test Match Special
That's encouraging for the England seam bowlers. They won't mind seeing that.