Manchester City hero Pablo Zabaleta can see Sergio Aguero moving to Barcelona.
Zabaleta believes such a deal would help convince Lionel Messi to stay with Barca.
He said, "If you ask me what I think will happen, for me it is very difficult to imagine Messi outside Barcelona. We all hope that he will retire there.
"They have had elections and now there is a new president. It is clear that he (Joan Laporta) wants to convince Messi to stay. And one of the main reasons they can give Messi to stay is to sign Agüero, his best friend."
