Roy (180) breaks Hales' England ODI record (171)
Highest ODI score at MCG (beating Mark Waugh's 173)
Roy was reprieved by DRS on 91
England lead five-match series 1-0
Aus 304-8; Finch 107 (119 balls)
M Marsh 50, Stoinis 60
James Anderson
England fast bowler on BBC Test Match Special
We were doing everything we could with the players that we had. But looking back, we were limiting ourselves. We thought [if we made a solid start] we would be able to catch it up at the end. But other teams were going ballistic at the front, and catching up at the end.
James Taylor
Ex-England batsman on Test Match Special
We'd never played any other way [in ODIs]. No England side had consistently scored over 300.
James Anderson
England fast bowler on BBC Test Match Special
A captain and a coach would want to put their stamp on a team. Before the World Cup Eoin Morgan had a few games and that was nowhere near enough time.
Under Alastair Cook he was happy with the structure of the side, of the games and the way we were trying to play.
For Eoin it was a really tough position for him to be in.
James Taylor
Ex-England batsman on Test Match Special
We probably put limits on ourselves in 2015. We'd never got 350 consistently the way these guys have. Eoin Morgan didn't have the best 2015 World Cup - people talk about Peter Moores and the coaches who were there, but I don't think we stepped up as a group of players.
James Anderson
England fast bowler on BBC Test Match Special
We thought we had the talent to compete at that World Cup. Looking back, we were way off the pace - we thought getting to 300 was a great feat, but we did it against Sri Lanka and they knocked it off in 37 overs. The group of players now, they've been given freedom to trust their instincts to get the team into winning positions.
James Taylor
Ex-England batsman on Test Match Special
The build-up wasn't great - we had gone to Sri Lanka with Alastair Cook still captain, then played a tri-series, but everything ground to a halt when we played Australia in the World Cup. We didn't perform anywhere near as well as we wanted to.
Test Match Special are now looking back at the 2015 World Cup in the company of James Taylor and James Anderson - starting with the umpiring error which denied Taylor a World Cup century and ending with an ignominious group stage exit at the hands of Bangladesh.
It was indeed a terrific opening spell from Wood, bowling with vicious pace and bounce (cue wistful sighs from England fans about the Ashes).
He finished with 1-49 from his 10 overs - the ball to dismiss the dangerous David Warner rising sharply to catch the top edge of the bat and looping up to Joe Root at second slip.
Chris Woakes started poorly but was better at the death, with Liam Plunkett solid until one very loose over near the end.
Adil Rashid took plenty of punishment in conceding 73 runs but took two vital wickets, while Moeen Ali offered excellent control.
#bbccricket
Rachel T: So good to see Mark Wood galloping in again.
James Anderson
England fast bowler on BBC Test Match Special
Mark Wood has had an outstanding day. He has comfortably been the pick of the England bowlers.
He was brilliant with the new ball, causing the batsmen all sorts of problems with pace and bounce, and has come back very well at the end.
As the old adage goes, it's tough to judge a pitch until both sides have batted on it.
But after scoring looked difficult early on, Australia grew increasingly fluent throughout their innings, suggesting the pitch is very good for batting.
A tremendous century from Aaron Finch anchored the innings. He wasn't as destructive as he can be, but batted with great control and timed his acceleration towards three figures brilliantly.
There were useful half-centuries from Mitch Marsh (50) and Marcus Stoinis (60) too, but England will be pleased to have kept the hosts down to 83 runs off the last 10 overs.
James Anderson
England fast bowler on BBC Test Match Special
I think England will be the happier of the two teams. The pitch is very good and has got better as the innings went on.
It looked tough up front and England bowl very well and took early wickets. Australia came back with Aaron Finch making a fantastic hundred but I think England will be confident of chasing this down.
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Debutant Andrew Tye thwacks it away into the leg side and Jonny Bairstow is running in...
Dearie me, Bairstow misjudges the flight, the ball bounces awkwardly in front of him and runs past him for four.
An inauspicious end to the innings for England but they otherwise bowled and fielded well to restrict Australia in the final stages.
Australia set England 305 to win the first ODI at the MCG.
A bit of a delay as the umpires work out exactly who is on the strike for the final ball.
The ball went so high before Roy caught it that Cummins was able to get back to the striker's end.
After a few replays, they determine new man Andrew Tye will face it...
Cummins c Roy b Plunkett 12 (300-8)
Plunkett wins that little battle eventually though, another short ball sent into the pitch and Cummins miscues his flay straight up.
Jason Roy runs round to complete the catch.
Sickener for Plunkett as he troubles Cummins with a slower short ball, but the number eight gets a streaky top edge on it, going over Jos Buttler and away for four.
That's 300 up for the hosts.
The batsmen crossed so Pat Cummins will keep the strike, with new man Mitchell Starc at the other end.
Cummins backs away too far and misses with his cut shot. That's three dot balls to start the final over.
James Anderson
England fast bowler on BBC Test Match Special
That is a great catch. Moeen has made it look very easy but right on the rope you have to watch the ball and in your peripheral vision keep watching the rope as well.
Paine c Moeen b Plunkett 27 (Aus 296-7)
Gone! Plunkett goes short again and Paine pulls it away, but Moeen does really well, running back toward the boundary and calmly claiming a difficult chance just inside the rope.