And he admitted it had been "difficult" not to hear the fans during the pandemic, saying he was now leaving without seeing them for 18 months.
Messi said: "I hope I can come back and be part of this club again in any way and help it become the best in the world."
Pressed on how Barcelona will cope without him, he described the club as "one of the best teams in the world".
He added: "People will get used to it, at first it will be weird but like everything, people will get used to it.
"They have great players, a great squad and in the end, it will be easy for them."
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THE TRANSFER OF MESSI TO PSG
FanfictionThis book is about a football how never transferred but now this happened