Tens of millions of immigrants to the United States and Canada may take special interest in the World Cup, particularly the Brazilian, Haitian and Ecuadorian diasporas.

The sport is a marker of a particular relationship to the wider world.

A Somali referee said he was detained, questioned and sent home. And an Iraqi player said he was subjected to intensive questioning at the border.

Tens of millions of immigrants to the United States and Canada may take special interest in the World Cup, particularly the Brazilian, Haitian and Ecuadorian diasporas.