A photo of Argentine football legend Diego Maradona is placed in the stadium prior to the match between Napoli and Roma in Naples, Italy on November 29. Photo: VCG

The medical coordinator in charge of Diego Maradona's home treatment denied responsibility for his death when questioned on Monday by Argentine prosecutors, insisting her role was merely "administrative."

Nancy Forlini, 52, is the fourth of seven people under investigation for manslaughter to testify in the case that has gripped the country.

Like the three before her, she pointed the finger of responsibility at Maradona's treating doctors.

The 1986 World Cup-winning captain died of a heart attack in November at the age of 60, just weeks after undergoing brain surgery for a blood clot.

"I never had access to the medical history made by the treating doctors," Forlini said in a written statement handed to prosecutors in San Isidro, a source close to the case told AFP.

Forlini exercised her right not to answer questions at the prosecutor's office on the outskirts of Buenos Aires.

But her written statement claimed that her job was limited to managing the care prescribed by Maradona's general practitioner Leopoldo Luque and his psychiatrist Augustina Cosachev, both of whom are being investigated and are due to be interviewed later this week.

Prosecutors opened an investigation after a board of experts looking into Maradona's death found he had received inadequate care and was abandoned to his fate for a "prolonged, agonizing period."

Maradona is an idol to millions of Argentines after he inspired the South American country to only their second World Cup triumph in 1986.