Our first sight of Nathan Lyon with the ball.
See if he has recovered from his KP battering
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Trott goes after Lyon - a paddle round the corner for 4
Afternoon session is much more flowing now.
Consecutive fours from Trott.
Out of nowhere Trott nicks one to Khawja. He was looking in great touch too
Pietersen sends his first ball into the air but hasn't got hold of it - it lands safely in no man's land
Warne says that was wreckless from KP. It was a bit - dancing down the track first ball!
England are yet again relying on Bell. OK so it's not 30/3 like they have been but it's a worrying decline from how things were in 2010/11 and the summer of 2011
Afternoon session summary
England resumed after lunch 56/1. It continued to be slow and steady but with some signs of aggression from Trott and Cook. Trott in particular looking much more back to his old self playing neatly off his hips and through the on side. They brought up the 50 partnership in the 35th over off 101 balls increasing the run rate steadily as their confidence increased and the bowlers began to tire.
Out of the blue he nurdled one to Khawaja off Lyon and was out for 49. Pietersen got off the mark with a dance down the track first ball and went on the attack against Lyon, so much so that he was taken out of the attack. Cook battled his way to his 32nd Test match half century - a really difficult one but a really important one for him. Pietersen, on the other hand, was scoring at almost a run a ball until Lyon came back into the attack and got a thick outside edge to Haddin to dismiss KP for 26.
Cook was dismissed LBW just before tea to a beautiful inswinger from Jackson Bird and England go to tea 155/4 with two new batsmen at the crease.
We are back from Tea and uh oh ..............
That was a very soft dismissal - Bell just chipped it up to Harris.
Nathan Lyon has been the surprise package - no one really expected the wicket to turn on day 1 but he's stayed focused even after KP attacked him.
It looks like Bairstow and Prior have decided that counter-attack is the way forward. Bairstow looking very positive against Bird
They are being a bit more watchful against Lyon because he's being bowling really well. Disciplined but getting a nice bit of turn and drift.
Change of bowling. Ryan Harris coming on for his 12th over.
And Prior plays a lovely aggressive drive through the covers. This is the sort of situation that Prior usually likes - one where his natural aggression is the best course of action
Some fantastic fielding from Warner there - he's so quick and athletic. Will save you 20 in the field
A tricky period now for Bairstow and Prior - Harris is bowling very well and they can't take any risks so it's gone a bit lull-ish again.
Ah - on comes Peter Siddle who has been criminally underbowled today
Tight stuff from Siddle as well now. Tough times for England who've made a bit of a hash of today
Billy the bugler is playing Phantom of the opera as Watson bowls
This is what they call in the business, a hole. And England are well in it
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Two actual runs. Actual runs. Would you Adam and Eve it
Oh my word. Bairstow given out by Hill - he's reviewed it straight away, it may not have turned back enough to be hitting the stumps.