Barcelona manager Ronald Koeman is confident Lionel Messi will stay.

Off contract in June, Messi is being linked with Manchester City.

But Barcelona will not go down without a fight and will throw plenty of their resources at convincing Messi, who has remained a one-club man throughout his entire career, to stay at the Nou Camp.

Koeman has kept his cards very close to his chest regarding the attacker's future, as he simply responded to reporters who asked whether he was leaving: "No, and I won't say any more about this."