Lazio bounced back from their derby disappointment against Roma with a a 2-1 win at Sampdoria.
A rare goal from Kevin Strootman helped Roma reclaim second place in the Serie A table as they beat derby rivals Lazio 2-0 on Sunday.
Giovanni Simeone scored twice as Genoa inflicted a 3-1 defeat on reigning champions and Serie A leaders Juventus on Sunday.
Roma lost further ground on Serie A leaders Juventus when they were sunk by a late penalty and lost 2-1 at Atalanta.
Lazio have denied reports that Ravel Morrison has gone AWOL from the Italian club.
Joe Hart's Torino thrashed Cagliari 5-1, while Napoli were held to a 1-1 draw by Lazio in Serie A on Saturday.