The 34-year-old's deal ended as June drew to a close, making him able to sign with any other club if he chooses
Lionel Messi has become a free agent after the Barcelona star's contract expired at the end of June.
Although Barcelona were hopeful of signing Messi to a renewal before the June 30 deadline, the 34-year-old is now officially unattached.
Barcelona still believe that Messi will eventually sign a new deal, but his status as a free agent will generate concern among the club's fans and management.