Napoli s Nigerian forward Victor Osimhen celebrates at the end of the Italian Serie A football match between Napoli and Torino on October 17, 2021 at the Diego-Maradona stadium in Naples. AFP
After Napoli captain Lorenzo Insigne had seen his weak first-half penalty attempt saved and Giovanni Di Lorenzo had a goal wiped off by VAR for offside, Osimhen came to the rescue for Napoli.
The 22-year-old Nigeria striker finished off an assault on Torino's goal following efforts from Dries Mertens and a deflection that set up Osimhen's header.
With its eighth win in eight matches, Napoli again moved two points ahead of unbeaten AC Milan, which defeated Hellas Verona on Saturday.
Defending champion Inter Milan, which lost at Lazio on Saturday, was left seven points behind Napoli.
Juventus hosted Roma later Sunday.
Napoli matched its best start, having also won its opening eight matchers in 2017-18.
In a strong performance for Napoli, Hirving Lozano hit the post in the second half.
(For more sports news and updates, follow Ahram Online Sports on Twitter at @AO_Sports and on Facebook at AhramOnlineSports.)