The football star died of a heart attack on Wednesday, aged 60.
Before the Argentine arrived, Napoli had never won Serie A. After he left, they never won it again.
Fans mourning the death of Argentine footballer Diego Maradona scuffled with police outside Casa Rosada, where his coffin is lying in state.
As controversial as he was talented, Maradona is a gigantic loss for the beautiful game.
Maradona had a subdural hematoma, which is an accumulation of blood between a membrane and his brain, his personal doctor, Leopoldo Luque, said.
Not a bad photo opportunity for Argentina's new head of state.
Diego Maradona danced with his Dorados team after a memorable victory in the Mexican Apertura quarter-finals on Saturday.
Argentine football legend Diego Maradona arrived in northern Mexico on Saturday to begin his new job as head coach of the second-tier club Dorados of Sinaloa.