The condition of Argentine football legend Diego Maradona, fighting for his life in hospital after heart failure, has been complicated by a lung infection, his personal doctor said.

However, Alfredo Cahe said the 43-year-old Maradona's condition had improved.

"The last electrocardiogram showed his condition had improved," he added. He said the condition of his heart had not deteriorated.

Maradona, who has been battling drug addiction for years, has been sedated and was attached to a respirator.

In 2000, in Uruguay, Maradona suffered a severe heart crisis due to a cocaine overdose.

He then began a long recovery treatment in Cuba, but since an overweight Maradona returned to Argentina, speculation and concern has grown over his health.

In his 20-year career, Maradona won Italian and Argentine league titles and led Argentina to World Cup victory in 1986 and second place in 1990.

In 2000, Maradona tied with Pele for the accolade of FIFA's best ever player.

Brought to you by AAP © 2024 AAP