Catania chief Pietro Lo Monaco has taken a swipe at Napoli coach Walter Mazzarri.
Mazzarri gave little credit to Catania for Sunday's shock win.
Lo Monaco snapped: "His recognition does not interest me. Mazzarri continues to speak in reference to the match officials and I do not like it because I cannot think that a referee would favour a small team like Catania.
"Mazzarri is the poor man's Mourinho. Catania won deservedly. Napoli are not the only team to have lost at the Massimino, because our players always raise their game at home."