Fabregas has long been linked with a return to the club he left as a teenager.
“I have known that Cesc wanted to join Barcelona for many years – but now it is more than about wanting to do it,” Pique told the Daily Star Sunday.
“Now it is something he feels he must do. The World Cup has not been a good thing for Arsenal.
“It has meant that he has been spending every day with myself, Xavi, Andres Iniesta and Victor Valdes – and he has made his feelings very clear to us.
“He is keeping his mind focused on Spain but his heart is in Barcelona. I think already in his heart he is wearing a Barcelona shirt next season.”
