Napoli came away from Marassi with all three points thanks to Dries Mertens and Hirving Lozano goals, after Edoardo Goldaniga’s temporary Genoa equaliser.
The Partenopei tested Mattia Perin several times as well, not to mention an Eljif Elmas goal disallowed for handball, but the hosts also hit the woodwork with Francesco Cassata.
Mertens added to his tally as the all-time top Napoli goalscorer, curling in from the edge of the box.
After Goldaniga’s header from a corner drew level, Lozano came off the bench and scored within 120 seconds, making the most of an inspired Fabian Ruiz assist.
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