Costacurta praises 'spectacular' Insigne and Mertens and reveals funny conversation with his son
Dries Mertens netted a hat-trick and the former Italy defender praised the Napoli striker revealing a conversation with his son: "Mertens and Insigne are spectacular, absolutely. Who else can ensure such a unique entertainment in Europe? I don't think it's easy. My son called me after the final whistle to tell me: 'Did you see how much spectacular they are?'"