Real Madrid great Iker Casillas expects Lionel Messi to stay with Barcelona after Sergio Aguero's arrival.

Watch below (and for more videos click here):

Aguero has agreed to sign for Barca as he comes off contract at Manchester City at the end of this month. The Argentina international leaves City after ten years with the club.

Aguero arrives at the Nou Camp with doubts persisting over whether good friend Messi will stay, but Casillas believes the Barca captain will now want to stay and play with his fellow Argentine.