In addition, supporters from all participating countries must line up during the opening to say a cheer or sing a song, linked to the home country, selected by the organizer.

"We choose a rhyme or song from your country that you know," the organization writes to supporters, according to a document seen by the AP news agency.

The supporter leaders have not been asked to be a mouthpiece for Qatar "but of course it would not be appropriate for you to disparage" the World Cup host country, writes the organizer.

CUT: That's how Qatar got the World Cup

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See how it happened when Qatar was awarded the World Cup.

Photo: Bildbyrån