Why are Croatia fans wearing water polo caps at World Cup? E

Croatian football fans have had plenty to celebrate in recent years and often donned water polos caps while cheering on their team. We explain why they wear the odd piece of headgear.

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Qatar , Czech Republic , Hungary , Russia , Croatia , Turkey , Croatian , Croatians , Nderim Redzaj , Vedran Corluka , Paulo Obradovic , Tomislav Rozic , Boris Nemec , World Football Museum ,