The 61-year-old, who fired Second Division Sunderland to victory over the mighty Leeds in the 1973 FA Cup final, died at a Surrey hospice after a battle against colon cancer.
The Irishman told the club´s official website: "It´s very sad news. The word legend is over-used in football, but having scored the goal he did, Ian Porterfield is a Sunderland legend. He will always be remembered by the Sunderland fans, so it´s a very sad time for the club - 61 is no age at all."
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