Matchwinner Clarence Seedorf hit out at AC Milan fans after their 1-0 victory over Cagliari.
"This is a very important win, because all the others had picked up full points and so the pressure was on us to do the same," he told Sky Italia.
"The fans have to learn to stay behind the team and not make things more difficult for us during a game.
"We need their support, it is pointless to sit there and jeer when someone makes a mistake. When I am in good shape, I do my best.
"The jeering does not motivate me in the slightest, but I have to work for the team and that is what I did today."
Seedorf added: "The squad held out well today, as Cagliari are a difficult side to face and are very organised. We did well to limit the danger they posed."