Former Real Madrid and Liverpool midfielder Xabi Alonso faces a five-year prison sentence over accusations of tax fraud.
The 36-year-old is alleged to have failed to disclose the full amount of money he was paid in image rights during his time with Los Blancos.
Alonso, who could also be fined around £3.5m if found guilty, has strongly denied any wrongdoing.
Spanish prosecutors released a statement on Wednesday to confirm that they are seeking a conviction against the ex-Spain international.
"The Economic Crimes section of the Provincial Prosecutor's Office of Madrid is seeking five years in prison for former soccer player Xabier Alonso Olano for the commission of three crimes against the Public Treasury during fiscal years 2010, 2011 and 2012," the statement, released via PA, read.
"The representative of the Public Ministry claims the same penalty for the tax advisor Ivan Zaldua Azcuenaga and for the administrator of the company Kardazli Comercio Servicos de Consultoria e Investimentos LDA. Ignasi Maestre Casanova.
"Each of them, in addition, requires payment of a fine of 4 million euros and in concept of civil liability asks them to pay jointly 2,032,845 euros to the Tax Agency, that is, the amount total of the economic damage caused to the Tax Administration, plus the interest generated."
Jose Mourinho, Lionel Messi and Cristiano Ronaldo have all previously been the subject of investigations over the past year, with Messi being given a 21-month jail sentence that was later reduced to a fine.
