Barcelona president Josep Maria Bartomeu says they are shopping for defenders.
Barca need to find a replacement for retired skipper Carles Puyol.
"We have a list of names. When the World Cup is over things will change. I'm not in the negotiations directly, but the sporting team is hard at work," said Bartomeu.
"We've got the central defenders [identified] but I can't reveal the names."
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