Romelu Lukaku scored against his former club and Naples beat struggling Roma 1-0 on Sunday to regain the Serie A lead and spoil The beginnings of Claudio Ranieri with the Giallorossi.

Napoli moved one point ahead of Atalanta, Inter Milan, Fiorentina and Lazio.

Fiorentina won 2-0 at Como for their seventh consecutive victory and Lazio beat 10-man Bologna 3-0.

Lukaku redirected from a cross from Napoli captain Giovanni Di Lorenzo early in the second half at the Stadio Diego Armando Maradona.

Roma had a chance to equalize but Artem Dovbyk’s header hit the crossbar.

Lukaku played for Roma last season but was one of the main transfer targets when Antonio Conte was hired at Napoli for this season.

Claudio Ranieri oversaw a Roma defeat in his first match at the club

Romelu Lukaku scored the winner as Napoli beat Roma on Sunday

Former Chelsea and Man United star Lukaku celebrates after scoring for the Italian club

Ranieri was hired 10 days ago as Roma’s third coach of the season, replacing the fired Ivan Juric, who had in turn replaced Daniele De Rossi.

Roma nevertheless remain in 12th place, four points above the relegation zone.

Yacine Adli gave Fiorentina the lead with a long-range strike early on. Then Moise Kean redirected a cross midway through the second half for his ninth goal of the season.

Fiorentina last won seven in a row in a single Serie A campaign in 1960, when they won eight in a row.

Bologna were reduced to 10 men when Tommaso Pobega picked up two yellows in the first half.

But it took time before Lazio took control with second-half goals from Samuel Gigot, Mattia Zaccagni and Fisayo Dele-Bashiru.

Patrick Vieira’s debut as Genoa coach was a 2-2 draw with Cagliari.

Cagliari’s two goals were scored on penalties, including Roberto Piccoli’s equalizer in the 88th minute.

Vieira was hired Wednesday to replace the fired Alberto Gilardino.

Mario Balotelli arrived late for Genoa and made no impact.

Turin and Monza drew 1-1.