Angry Barcelona fans chanted for the resignation of club president Josep Maria Bartomeu after captain Lionel Messi announced Tuesday that he wished to leave the Catalan side.
The decision by the Argentine forward has thrown the club into turmoil less than two weeks after their humiliating 8-2 Champions League defeat by Bayern Munich.
Messi, who has been named world's best player of the year a record six times, has grown increasingly unhappy over the last 12 months on how the club is being run under Bartomeu.
He criticized club officials for forcing players to take a pay cut to cope with the financial hit of the coronavirus pandemic.
After Barca surrendered the Spanish La Liga title to Real Madrid in July, Messi slammed the team as "weak" and "vulnerable" during an uncharacteristically fiery post-match interview.
Barca are in the midst of overhauling their squad following the Champions League defeat, and some Spanish media have reported that new coach Ronald Koeman told Messi's close friend and strike partner, Luis Suarez, that he does not wish the Uruguayan to stay at the club.
