ROME -- Luis Alberto scored the only goal as Lazio moved fourth in the Italian league with a 1-0 win over Sampdoria on Saturday.
The midfielder struck in the 24th minute, assisted by Sergej Milinkovic-Savic, at Rome's Olympic Stadium.
Lazio has 43 points from 23 games and trails leader Inter Milan by seven points. Inter plays second-place AC Milan on Sunday in the highly charged city derby.
Fifth-place Juventus can leapfrog Lazio when it hosts last-place Crotone on Monday.
Mid-table Sampdoria has 30 points.
Also Saturday, Genoa and Hellas Verona drew 2-2, and Sassuolo vs Bologna finished 1-1. Bologna's Aaron Hickey was sent off in the 30th minute.