In a new story, Jk Rowling has revealed that the wizards in the Harry Potter universe are pretty big on Scottish rugby. Writing on her Pottermore website, Rowling said: "it is considered infra dig for wizards to support any rugby team other than Scotland."

JK RowlingJK Rowling Revealed Harry Potter as a Scottish Rugby Fan

The author elaborated on the revelation in a rare appearance on Twitter, telling her three million followers to, "help keep this noble tradition alive by tweeting #wizards4scotlandrugbyteam before #6nations Scotland v Italy", adding: "Wizards worldwide support the Scottish rugby team. It's an old magical tradition."

It clearly worked: Scottish snatched victory from Italy with a last kick drop goal from Duncan Weir, to win 20-21.

"The wizarding world's affection for the Scottish rugby team is all the more bizarre because a substantial part of wizarding society knows nothing about Muggle sports, which they regard as inherently dull and even silly," Rowling writes in her new story on Pottermore. "Yet the Scottish rugby team has become a wizarding meme - part in-joke, part genuine interest - which has its roots in the 19th century and is a tale both sad and uplifting."

However, Rowling also revealed that wizards regularly ridicule the game of cricket and simply have no time for it.

Last week, it was announced that Rowling would pen another crime novel under the Robert Gailbraith pseudonym. The Silkworm will follow private investigator Cormoran Strike as he investigates the murder of a novelist. It will hit shelves on June 19 2014.