AC Milan veteran Mark van Bommel admits they must bounce back from defeat to Lazio.
Milan's title hopes took a hit in midweek.
"We are facing Napoli, Juventus, Udinese and Juventus again - I consider this period the most important in our season and I also want to score a goal.
"We are not happy when we don't win because we know we fall further behind Juventus. The reaction has been positive and the squad knows it is important to learn from the defeat, so as to return to winning.""This year, just like last, Milan-Napoli is a key game in the Scudetto race. After losing to Lazio we do not want to lose any more points in the standings," said Pirlo.