A top UK Government official called for Celtic and Rangers to play a special friendly match in Belfast to mark the signing of the Good Friday Agreement, released Cabinet documents show.
Alastair Campbell wrote to then prime minister Tony Blair to raise the idea in April 1998 and suggested the two Glasgow clubs could wear each other's jerseys as a gesture of conciliation.
The former Downing Street director of communications, whose parents hailed from Scotland, said he had a "direct in" with Celtic while he could get Manchester United manager Alex Ferguson to approach Rangers.
