The club adds that the player, who can play either in midfield or at right back will have a buyout clause of 500 million euros ($613 million), reports Xinhua news agency.
The 25-year-old joined Barcelona as a 14 year-old and made his first team debut in November 2010, although it wasn't until 2013 that he was definitively promoted to the first team squad.
He becomes the second Barcelona player to agree a contract extension this week, following in the footsteps of central defender Gerard Pique, who on Thursday also agreed a contract until the end of June 2022.
Elsewhere Barcelona have confirmed that recent signing Yerry Mina will wear the number 24 shirt and it looks as if midfielder Rafinha could be close to agreeing a move to Inter Milan.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
