Barcelona president Josep Maria Bartomeu's remarks come amid severe speculation around Messi's future at the club.
Barcelona forward Lionel Messi raised eyebrows when he said in passing on Monday that he did not know where he would be next year.
Barcelona forward Neymar finds himself at the centre of unwanted media attention in Spain as his struggling team's promising season threatens to unravel after a run of defeats. The Brazilian has not scored in his last five games and is being portrayed as one of the reasons for Barca's woes after three straight La Liga losses has seen them caught by Atletico Madrid, who have also knocked them out of the Champions League. Barcelona-based newspaper La Vanguardia this week focused on the 24-year-old's conduct off the pitch, particularly his "trips away, parties at unadvisable times and commercial commitments". He visited Brazil in March for his sister's birthday party. TV programme 'El Dia Despues (The Day After) on Tuesday showed Neymar arguing with Jordi Ala during Sunday's home defeat by Valencia after the defender chose not to pass to him. Camera footage showed Neymar appearing to swear at his team mate. Barcelona play Deportivo La Coruna on Wednesday looking to get their title bid back on track with the cover of newspaper Mundo Deportivo focusing on Neymar, pictured between Lionel Messi and Luis Suarez, below the headline 'This cannot go on'.
Saturday marks the 10th anniversary of Lionel Messi's first-team debut with Barcelona, when the Argentine came on as a 16-year-old substitute during a friendly against Porto in Portugal.