MILAN -- Sampdoria saw its five-match unbeaten run end in a 2-0 loss at Cagliari in Serie A on Saturday after it was forced to play more than half the game with 10 men.
Jo?o Pedro converted a second-half penalty and Nahitan Nandez also scored after Sampdoria defender Tommaso Augello was sent off five minutes before the interval.
Samp would have gone third with a win but it remained midtable, six points behind early leader AC Milan.
Sampdoria arrived in Sardinia on a run of good form, having won four of its last five matches, but it hadn't won at Cagliari in 13 years and was given an early scare when Jo?o Pedro hit the crossbar.
Sampdoria's hopes of ending its negative streak on the Italian island diminished shortly before halftime when Augello brought down Nandez as the Cagliari player was going clear from midfield. The referee initially showed Augello a yellow card but changed it to red on video review.
Matters went from bad to worse for Samp three minutes into the second half when Lorenzo Tonelli fouled Jo?o Pedro, who struck the resulting penalty under the diving Emil Audero for his fifth goal in as many matches.
Cagliari doubled its lead in the 69th minute when Nandez ran on to a through-ball and fired past the onrushing Audero.
Riccardo Sottil also had a goal disallowed for offside for Cagliari.
M'Bala Nzola scored two quick-fire goals in Spezia's 3-0 win over Benevento that was a matchup between two sides promoted from Serie B last season.
Tommaso Pobega volleyed in Salva Ferrer's cross to give Spezia the lead in the 29th and both sides hit the woodwork either side of the break.
Nzola turned in Emanuel Gyasi's cross in the 65th and all but secured the points when he headed in a corner five minutes later.
It was the first time the 24-year-old French forward had scored in Serie A.
Spezia leapfrogged two points above Benevento into 13th.
The pressure grew on Fiorentina coach Giuseppe Iachini after his side was held to a 0-0 draw at Parma.
Fiorentina has won only one of its last six matches and is 12th in Serie A, two points above Parma.