Football legend Diego Maradona died at the age of 60 of a heart attack.
On November 3, "el Pibe de Oro" (the golden man) had to be operated on for a hematoma in the brain.
An operation from which he had come out "without after-effects", his surgeon had said.
The 1986 world champion was released from hospital on November 12.
Diego Maradona had since been under medical surveillance in his main residence.
Three days of national mourning have been decreed by the Argentine government.