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Tijjani Noslin scored first for the hosts on 21 minutes, shooting home after a superb jinking run in the box.

Substitute Pedro and Matias Vecino added late goals to apply come gloss to the scoreline, butLazio was the dominant side, firing off 18 ahots to Genoa's six.

Lazio now has 16 points and sits one spot behind fourth-placed Atalanta on goal difference, with Udinese in sixth also on 16 points.

For Genoa, life continues to be tough. It has only one win this season and sits third from bottom with just six points.