2016: 7 goals in 7 days for Dries Mertens
In 2016, in the space of a week, Dries Mertens signs a hat-trick and a poker. The hat-trick was in Cagliari, in Napoli's 5-0 win over the Sardinians on 11th December, the hat-trick seven days later against Torino at the San Paolo, in the Azzurri's 5-3 win.
Source: legaseriea.it