Juventus fullback Stephan Lichtsteiner says the Serie A leaders are wary of the chasing pack.
Juve are three points clear at the top of the table.
"The victory was very important for us," said Lichtsteiner. "We dropped many points in January, which was also down to an element of bad luck.
"We're still top of the League, but we know we'll need to remain alert because Napoli are a great side, as are Lazio and Inter."