The coaches of Uruguay and Ghana have brushed aside conspiracy theories claiming English referee Howard Webb was replaced as the man in charge of Friday's World Cup quarter-final because of the controversy over Frank Lampard's disallowed goal.

A Uruguayan referee team led by Jorge Larrionda was in charge of the England v Germany match when Lampard's shot clearly crossed the line but no goal was given. FIFA announced on Thursday that Portugal official Olegario Benquerenca will take charge of the Uruguay v Ghana quarter-final and insisted there was no question that Webb, who has not been given a last-eight match, had originally been earmarked for the match.

Uruguay coach Oscar Tabarez said: "It seems every time there is a slight coincidence of any sort we start to dramatise things."