Argentinian football supporters are a fanatical lot, and River Plate's contingent have lived up to their raucous reputation by brandishing the biggest flag in the world.
Supporters marched with the world's largest piece of cloth - measured at 7,829 metres long - through a street in Buenos Aires on Monday.
And Los Millonarios' followers efforts will be noted when they are listed in the Guinness Book of World Records in due course.