Luis Alberto scored the only goal as Lazio battled past Sampdoria 1-0 to move fourth in Serie A.
Spaniard Alberto struck after 24 minutes in Rome curling in off a Sergej Milinkovic-Savic cross for his seventh league goal this campaign.
Simone Inzaghi’s side overtake Juventus to move fourth into the Champions League berths, equal on points with third-placed Roma, with both their rivals playing later this weekend.
Lazio nevertheless held on to extend their unbeaten home run against their Genoa rivals to 15 games, and sit 11 points behind leaders Inter Milan.
At the top of the table leaders Inter and AC Milan, one point behind in second, renew their duel for pole position tomorrow in the San Siro