Steven Finn became the first England bowler to take a World Cup hat-trick with wickets off the final three balls of host Australia's 342 for 9 in Mebourne.

Finn removed Brad Haddin, Glenn Maxwell and Mitchell Johnson to deny Australia an MCG record total of 344.

He finished with figures of 5-71, the second most expensive five-wicket haul in one-day history.

"A fortuitous and unheralded hat-trick," said ex-England spinner Graeme Swann. "He seemed embarrassed by it."

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Finn's hat-trick in England's tournament opener against co-hosts Australia was the eighth in World Cup history.