The former Wolfsburg forward had scored 13 and assisted 5 in 27 league games in the one season he spent in French football in the 2019/20 campaign.
Osimhen assisted Napoli’s third goal for Hirving Lozano – his 5th assist in 24 games as he also equalled his previous highest in Europe.
Koulibaly opened the scoring in the 5th while a brace from Mertens and the 6th from Rrahmani completed the job. The single goal for the opponents came from Lopez
The Nigerian international was a thorn in the flesh of the Sassuolo defense all afternoon, running the channels and creating for his teammates.
Osimhen thought he’d scored Napoli’s sixth of the game and his 14th of the season in the 72nd minute but was ruled offside. He was substituted in the 77th minute.
His 18 goal contributions in 24 games is the best in Napoli and one of the best in the league this season.