Eng 12-0published at 2.2 overs
Buttler 12, Hales 0
A welcome boundary for England as Buttler chips a length ball over mid-on. Hazlewood is making him have to take risks but this one pays off.
England win by eight runs to seal series win with one to play
Curran stars with key wickets at key moments, taking 3-23
Marsh leads Australia run-chase but can't kick on (45)
Australia fall to 22-2 as both Warner & Finch fail
Malan anchors England (178-7) with classy 82 off 49 balls
Moeen puts on 92 with Malan after England slip to 54-4
Stokes struggles again - making 7 off 11
Sam Drury
Buttler 12, Hales 0
A welcome boundary for England as Buttler chips a length ball over mid-on. Hazlewood is making him have to take risks but this one pays off.
Superb start from Cummins. Plenty of swing with the new ball and, as ever, he is on the money from ball one.
Buttler hit a couple of drives nicely but couldn't beat the in-field. He has to force it eventually and muscles one back down the ground, not timed but he sprints back for three.
Good start from the Aussie bowlers.
Eng 5-0
What do I know!? The ball did swing a long way and that is what saves Buttler, it's just sliding down leg.
That has surprised the Australians but it's very good review from Buttler.
Alex Hartley
Former England bowler on BBC Test Match Special
It looks out. The only thing that is going to save him is if the ball is going down the leg side.
Eng 5-1
More swing, this time for Pat Cummins and he hits Buttler on the front pad with an inswinger.
The umpire raises his finger but Buttler decides to review. The only thing that might save him is if it is doing too much and missing leg. I'd be surprised, though.
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Alex Hartley
Former England bowler on BBC Test Match Special
Josh Hazlewood beat Alex Hales a couple of times there. Hales admitted he didn't feel right early in his innings in Perth but once he got going he was unstoppable.
Fantastic recovery from Josh Hazlewood after going for four first ball. Buttler pushes a single two balls later but Alex Hales is unable to get off the mark from the next three, playing and missing at a couple.
There is a bit of swing for Hazlewood, too. We'll see how long that lasts with the new ball.
Stuart Clark
Former Australia fast bowler on Test Match Special
England will need a fairly decent score here - high 190s or into the 200s. If you get 160/170, history says you don't win a lot of games here at Canberra.
And we're off! First ball, width from Hazlewood and Buttler drives confidently through the covers for four.
Top shot from the England captain.
Right then, the players are out at the Manuka Oval and we're ready for the off.
Josh Hazlewood will bowl the first over for Australia, Jos Buttler is on strike for England.
England bowler Chris Jordan, speaking to BT Sport: "I had a bit of a fracture on my bowling finger so I had to have it in a splint for about five weeks. Getting back into the fielding has probably been the hardest part.
"We're still building as a team and we can take a lot of confidence from the win the other night. We'll be involved in these must-win games in the World Cup so it'll be good preparation for that tonight."
Chris Jordan should add to England's death bowling options, although Sam Curran and Reece Topley did very well in Perth.
Anyway, the England fast bowler has been talking about his recovery from injury and preparing for the World Cup...
Australia bowler Mitchell Starc: "Ten hours on a flight [to Perth and back] wasn't the smart option for fast bowlers with the schedule we have coming up this summer, so [the first T20] gave us a good look at our depth and the chance for some guys to showcase their skills on the world stage.
"There was some good stuff all round. We got pretty close. We had a good look at the England team. We have seen their firepower but we were able to get a first sight at what game plan they are going to stick to in Australia and hopefully we can combat that here.
"We knew that these warm-up games were a chance to look at some combinations. We had a different bowling attack in the first match, we have five players coming back for this. So this stretch of games is a good chance to fine tune our tactics, try some different match-ups. So yes, we still want to win the series but the bigger picture is the World Cup".
More from England captain Jos Buttler: "We got off to a really good start [in the first T20]. I thought Australia were favourites for a long part of the chase but we showed great character to defend that score."
On Australia's five changes: "You want to play against the best players in the world and Australia certainly have those so we look forward to the challenge."
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Elsewhere, South Africa have added Marco Jansen to their squad for the T20 World Cup after Dwaine Pretorius was ruled out of the tournament due to injury.
Pretorius fractured his left thumb during the recent bilateral T20 series against India and will be replaced by bowling all-rounder Jansen in the 15-man squad.
Seamer Lizaad Williams has been called up to replace Jansen among the travelling reserves.
England captain Jos Buttler: "We would have bowled as well. We've got two changes, Chris Jordan and David Willey come in for Mark Wood and Chris Woakes. Just giving Mark a rest. Wrapping him in cotton wool."
Australia captain Aaron Finch: "It looks like a really good wicket. No other reason to bowl. Five changes for us. Probably the World Cup XI, a quick trip to Perth and then back here and to Brisbane so it made sense to rest those bowlers.
"You've got to come into every game with a clean slate. We fought really hard the other night in the second half with the ball and managed to restrict them after it looked like being a very big total.
"I'll be back up the top with Davey (Warner)."
Australia: Aaron Finch (c), David Warner, Mitchell Marsh, Glenn Maxwell, Tim David, Marcus Stoinis, Matthew Wade (wk), Pat Cummins, Mitchell Starc, Adam Zampa, Josh Hazlewood
England: Jos Buttler (c & wk), Alex Hales, Dawid Malan, Ben Stokes, Harry Brook, Moeen Ali, Sam Curran, Chris Jordan, David Willey, Adil Rashid, Reece Topley