Buttler smashed 65 off 48 balls as England survived the hat-trick by Clint McKay to register a three-wicket win.
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TEAM NEWS: Australia have awarded a debut to Nathan Coulter-Nile, who has replaced Josh Hazlewood in the eleven. England have gone in with an unchanged side.
TOSS: Eoin Morgan wins the toss and England will be bowling.
England must win today to keep the five-match series, which Australia lead 1-0, alive.