The club has pledged its star legal and moral support after it emerged on Wednesday that he faced a 21-month jail sentence.
Barcelona has offered backing to Lionel Messi after he was given a prison sentence for tax fraud offences on Wednesday.
Both have been given a 21-month jail sentence by a Spanish court, along with a fine totaling $2.21 million.
Neither of the two are likely to serve any time in prison as the sentence was less than two years for a non-violent offence and neither holds a criminal record.