Napoli had a flawless start to the encounter thanks to Mexico star Hirving Lozano's four-minute brace, in the 23rd and 27th minutes, while Matteo Politano made it 3-0 in the 30th minute.
Romero partially made amends by setting up Atalanta's consolation goal as substitute Sam Lammers struck in the 69th minute.
And he chose the moment he scored his first official goal for Napoli today to again state his support for Nigeria to reform the country's police among other vexed social issues. GOD is the greatest.
The forward grabbed an assist against Genoa before he finally opened his account for Napoli at Stadio San Paolo and Gattuso has expressed his delight with the 21-year-old's effort. I'm especially pleased for Osimhen because he hadn't scored yet and he deserved a goal for all the hard work he's been putting in for the team.
"Victor was my wish and I thank the President for having satisfied me. It wasn't easy but we've got ourselves a fabulous player".
Atalanta remained on nine points from four games, one ahead of Napoli.
Napoli resumes Seria A action after the worldwide break in which period they were handed a 3-0 defeat and had one point deducted for failing to turn up for their Serie A match away to Juventus earlier this month amid confusion over Italian soccer's coronavirus rules.