Koni De Winter, 21, starter, played the entire match.
The Norwegian Morten Thorsby (17th) and the Dane Morten Frendrup (27th) in the first period, the Icelandic Albert Gudmundsson (63rd) in the second, fixed the figures at 3 to 0.
Genoa remains in the soft underbelly in Serie A, in 12th position with 42 points.
In England, assured since Friday of returning to the Premier League, a year after leaving it, Leicester won at Preston 0-3 (half-time: 0-1) during the 45th and penultimate day of the Championship, English Division 2. Champion of England in 2016, Leicester comes back with the title in their pocket.
Wout Faes, the captain, played the full 90 minutes. Dennis Praet remained on the bench.
The English Jamie Vardy (36th, 52nd) and Kasey McAteer (67th) scored the three goals of the game.
