Fabian Ruiz scored the only goal as Napoli shocked Inter Milan 1-0 in their Italian Cup semi-final, first leg tie in the San Siro.
The Spanish midfielder broke through after 57 minutes to get Gennaro Gattuso's side back to winning ways after their 3-2 league defeat at home to lowly Lecce last weekend.
Ruiz picked up a Giovanni Di Lorenzo cross, beating three Inter defenders to curl in past a helpless Daniele Padelli on Wednesday.
"This is the real Napoli. Big compliments to my lads," said Gattuso, whose side are 11th in the Serie A table.
But he warned: "There's no reason to smile, we still haven't achieved anything yet."
"It's a team of substance despite its position in the standings."
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