As the team reported on its website, Messi will sign the new contract on Thursday at the club office. Currently, the 25-year-old with the Argentine national team, on Wednesday denied a friendly match against Sweden in Solina.
After his return, the signature will be placed under the new contract. The association binds its top striker to 30 June 2018. Since 2000, Messi is the Catalans, where he went through the youth academy of the club.
Recently extended to the leaders of the Primera Division contracts with the former "La Masia" - graduates, captain Carles Puyol and Xavi, by the end of June 2016.
