Napoli president Aurelio de Laurentiis has urged local government to get a move on over improving facilities at the San Paolo.
Napoli need the improvements completed ahead of Champions League competition.
De Laurentiis said: “We have made it clear to the new administration that this is an urgent matter, because the UEFA regulations to take part in the Champions League are very clear. Without certain adjustments, we would not be able to play there, which would be a tragedy for the club and fans.
“Imagine Napoli-Barcelona played somewhere other than the San Paolo. We also have some international friendlies lined up. If we invite Real Madrid, Boca Juniors or Aston Villa, how embarrassing will it be to have a stadium still under construction?”