MILAN (AFP) - Second-half goals from Federico Balzaretti and Adem Ljajic handed AS Roma a precious 2-0 derby win over Lazio to send the Giallorossi top of Italy's Serie A on Sunday.

Napoli, who were leaders ahead of Roma but with the same goals difference prior to this weekend, are away to a depleted AC Milan side in Sunday's late game.

Ahead of the San Siro fixture, Roma take the lead with a two-point cushion on Inter, who had gone top provisionally earlier Sunday following a 7-0 rout away to Sassuolo.

Fiorentina, in third, and fourth-placed Juventus are also just two points shy of Rudi Garcia's league leaders, with Napoli one point adrift in fifth.

Goals from Fernandez Mati and Giuseppe Rossi secured Fiorentina's 2-0 away win at Atalanta while Juventus saw Carlos Tevez level Fabrizio Cacciatore's opener for Verona and Spain international Fernando Llorente score his maiden goal on his debut to secure a nervy 2-1 home win for the champions.