Rasmus Hojlund struck again for Napoli with the winning goal in Sunday's 2-1 victory over struggling Genoa.
Napoli's bid for a second Serie A title in three seasons was hit by Sunday's 2-2 home draw with Genoa which allowed Inter Milan to move to within a point of the league leaders
Pope Francis died at his home in the Vatican on Monday aged 88 after suffering a stroke.
AC Milan failed to honour the 125th anniversary of the club's foundation with Sunday's drab goalless draw with Genoa which left the seven-time European champions way behind Serie A's top teams.
Injury-hit Italian Serie A side Genoa announced the signing of former Italy striker Mario Balotelli on Monday.
Genoa snatched a 1-1 home draw with Roma in the final seconds on Sunday to continue their positive start to the Serie A season.
Juve trail Inter with 11 games of the season remaining after losing 2-1 at Napoli on Sunday.
Napoli's crisis deepened on Saturday after being held to a 1-1 home draw by Genoa.
Defending Serie A champions Napoli saw their non-winning league ways continue Friday with a goalless draw against mid-table Monza
Juventus took advantage of Atalanta's goalless draw at Genoa with a 2-0 win over Cagliari which inched them closer to Serie A's Champions League places, as Salernitana's trip to Udinese became the season's first coronavirus-related casualty.
Andriy Shevchenko got his first win as Genoa coach on Tuesday with a 1-0 success over Salernitana booking an Italian Cup last 16 clash against his former club AC Milan.
Inter Milan kicked off their Serie A title defence by cruising past Genoa 4-0 on Saturday in an encouraging display from the champions.
Serie A: Inter Milan coasted past Genoa to register their fifth win in a row and also push for their first league title since 2010.
Serie A: Cristiano Ronaldo scored a pair of penalties in his 100th appearance for Juventus in the club's 3-1 win over Genoa on Sunday.
Cristiano Ronaldo headed in the equaliser in the 69th minute for Juventus to avoid handing new coach Andrea Pirlo a first defeat.
Lecce lost 3-4 at home to mid-table Parma but would have dropped down to Serie B even if they had won as relegation rivals Genoa thumped Hellas Verona 3-0.
Inter Milan pulled back ahead of Atalanta, and within four points of leaders Juventus, who are poised to claim a 36th 'Scudetto' when they play Sampdoria.
Sebastiano Esposito put away a second-half penalty which made him the youngest Inter Milan scorer since Mario Corso in 1958.