Barcelona set to sue after astonishing newspaper claims about Messi's contract

'The club regrets its publication given that it is a private document'

Cover of El Mundo newspaper which made claims about Messi's contract

Barcelona have denied responsibility for the publication of Lionel Messi's current contract with the Catalan giants.

Spanish newspaper El Mundo published the astonishing details of the Argentinian's deal, claiming Messi is earning over €555million across his four-year contract.