A pair of St. Patrick's Athletic players fired the Republic of Ireland into the quarter-finals of the Under-17 European Championship.
Mason Melia and Luke Kehir both scored twice in a 4-2 victory over tournament hosts Hungary.
The young 'Boys in Green' secured the runners-up spot in Group A, behind Poland.
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Ireland will play the winners of Group B in the last 8.
Spain occupy that slot ahead of their final group game with Serbia.
Second placed Slovenia play Italy.
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Ireland manager O'Brien is delighted that his players have rallied from an opening defeat to Poland.