Barcelona says Neymar will sign a three-year contract extension on Friday, a deal that will keep the Brazil forward with the Spanish club until 2021.
Barcelona and Neymar had made the announcement of the agreement in July.
The previous contract was to end in 2018. The new deal will be valid until June 30, 2021.
The club’s announcement in July ended speculation that Neymar was unhappy in Spain and was looking to move to another club. Paris Saint-Germain was among the clubs reportedly trying to sign him.
Barcelona also confirmed that defender Javier Mascherano will be staying with the club until 2019. That deal also had been announced in July.