The Office of the Attorney General of Portugal will carefully examine the statement about the contractual matches of Benfica.
The authorities intend to test 163 games "eagles" over the past five seasons, informs the publication of Record.
The prosecutor's office received anonymous information that Benfica was guilty of fraudulent results.
During the check, the correspondence between the players and the club's management will be studied.
In the period that will be studied, Benfica won four times the championship of Portugal.
For three rounds before the end of the current campaign, the "eagles" are losing two points to the leading Porto.
In October last year, police searched the office of President Benfica Luis Felipe Vieira. He was suspected of illegal correspondence with the arbitrators.