Suso scored a hat-trick as Genoa dealt serious damage to Frosinone's Serie A survival bid by plundering a 4-0 victory at the Stadio Luigi Ferraris.The former Liverpool midfielder, who is on loan from AC Milan, struck his first goal in the 43rd minute and coolly doubled up just before the hour mark.Luca Rigoni came to the party with Genoa's third in the 72nd minute and Suso completed the rout with a splendid finish under the crossbar four minutes later.While Genoa leap into the top half, promoted Frosinone remain one point from safety with only seven games remaining.