Diego Maradona has shown a slight improvement in his condition after he was put in intensive care with heart and breathing problems.
Family doctor Alfredo Cahe told reporters outside a Buenos Aires clinic that Maradona (43) was still critical and remained on an artificial respirator. The respirator had been turned down to the minimum level.
The medical team will issue a bulletin on Maradona at midday (4 p.m. Irish time) today.
Argentine media ran live coverage from the clinic throughout the day along with clips of his soccer triumphs and his difficult days with drugs.
Earlier in the day, Dr Cahe said Maradona had a lung infection and denied reports he had taken an overdose of cocaine - an addiction he has been battling for the last decade. Maradona had a heart attack in early 2000 due to cocaine use.
Maradona had arrived at the clinic on Sunday in a serious, feverish state with breathing difficulties and a swollen heart, after watching a game at his former club Boca Juniors' stadium.
Maradona's official website www.diegomaradona.comsaid the former Argentina captain was taken ill while eating a traditional barbecue after watching Boca at the Bombonera stadium in Buenos Aires where he made his name.