Primary school pupils have been banned from swapping World Cup football stickers in the playground – because it leads to rows and fights.
Teachers at Battyeford Primary in Mirfield, West Yorkshire, imposed the ban because the popular playground pastime caused so much trouble.
Some kids were even offering to trade homework and money for popular stars including Lionel Messi, Steven Gerrard and Cristiano Ronaldo.
Lisa Davies-Unger, 47, a childminder, said: "Pupils were getting into fights and teachers were getting annoyed. It's a distraction so I suppose that led to the ban."
The frenzy for Panini stickers comes as collectors try to fill albums before the World Cup starts in Brazil next month. More than 40million of the 50p packets have been sold worldwide.
A school spokesman said: "There were a lot of arguments and stickers going missing."
But Kirklees Council said there was no ban on bringing stickers into school, adding: "We have a special club where children can swap them in free time."
Panini joked: "That's the first time our sticker collection has been 'sent off' for foul play."
Are your children swapping stickers?