Barcelona are beginning to plan for a future without Lionel Messi, although club president Josep Maria Bartomeu believes he will sign another contract.
The 31-year-old's current deal will expire after the 2020-21 campaign and the Barca captain has previously said he would like to return to his homeland with boyhood club Newell's Old Boys.
Messi started his career at Newell's but moved to Barcelona as a teenager, developing into an all-time great of the game with nine LaLiga titles and four Champions League crowns.
Bartomeu remains hopeful Messi can be persuaded to extend his time at the club even further but accepts Barca must have a plan for when the Argentina international moves on.
"We are already thinking about it, but it is a future still far away," Bartomeu said to Le Figaro. "He is a young player, he is 31-years-old, his performance is very good, he plays even better and better, I do not know how he does it!
"He has a contract for two seasons, but I think he will extend his career beyond 2021. But you have to think of young talent. When Messi no longer plays, no one can replace him. It's impossible.
"Behind Messi, there is nobody. Neither in Barca nor anywhere else. The coach of the day will have to think of how the team will play [but] the idea of Barca football will remain the same."