Rino Gattuso has suffered a setback in his bid to return to playing at AC Milan.

The midfielder had returned to training last week and was hoping to make his first official appearance since September.

"AC Milan announce that Rino Gattuso cannot yet be called up for an official match due to a problem with the dosage of the medication he is taking," read the statement.

"There will be a progressive reduction of the dosage that will then allow Gattuso to return to competition."