A handout picture taken and released on February 7, 2013 by FC Barcelona shows Barcelona's Lionel Messi signing his new contract with the Catalan club at the Camp Nou Stadium in Barcelona. Lionel Messi has signed a new contract that will tie him to Barcelona until 2018, the club announced today. AFP PHOTO / FC BARCELONA / MIGUEL RUIZ RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / FC BARCELONA / MIGUEL RUIZ" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS