USA playmaker Christian Pulisic scored twice in 10 minutes on Monday as AC Milan came from behind to edge Torino 3-2 to move to the summit of Serie A.
David Neres stroked home the only goal of a feisty game in the 36th minute at the Stadio Olimpico, as Napoli beat Roma 1-0.
Lautaro Martinez fired Inter Milan to within a point of the Serie A summit with both goals in Sunday's 2-0 win at promoted Pisa, ahead of Napoli's clash at Scudetto rivals Roma.
AC Milan moved top of Serie A on Saturday after surviving a late penalty controversy to beat Lazio 1-0.
AC Milan also had Mike Maignan to thank for the three points as the France goalkeeper kept out Hakan Calhanoglu's penalty in the 74th minute.
Milan takes centre stage on Sunday night as the city's two football giants face off at the San Siro with top spot in Serie A up for grabs.
AC Milan are level with Napoli at the top of Serie A after throwing away a two-goal lead to draw 2-2 on Saturday in an entertaining match at lowly Parma.
Napoli maintained their lead at the top of Serie A on Tuesday after the champions won a hard-fought contest at lowly Lecce 1-0 and moved three points ahead of AC Milan.
"While it is regrettable to have to let these games go ahead, this decision is exceptional and shall not be seen as setting a precedent," UEFA president Aleksander Ceferin said in a statement.
Luka Modric and Kevin De Bruyne will face off on Sunday night when Serie A champions Napoli travel north to face AC Milan and the first true test of their title defence.
AC Milan defeated Lecce 3-0 on Tuesday to book their spot in the last 16 of the Italian Cup thanks to goals by Santiago Gimenez, Christopher Nkunku and Christian Pulisic.
Juventus drew 1-1 at Verona on Saturday to climb provisionally top of Serie A while AC Milan closed to within a point of the Turin giants with a 3-0 success at Udinese.
Luka Modric scored days after his 40th birthday to join an exclusive club and give AC Milan a 1-0 win over Bologna in Serie A on Sunday.
Adrien Rabiot was frozen out of the Marseille squad and placed on the transfer list by coach Roberto De Zerbi after a verbal and physical altercation with Jonathan Rowe following a defeat to Rennes on August 15.
When Napoli won the title in 2023 it followed up the championship with a highly disappointing 10th place finish.
Rafael Leao appeared to injure his right calf after celebrating his headed goal early on and had to be substituted.
Malick Thiaw is the third signing of the offseason for Newcastle, which is back in the Champions League in the coming season.
Tijjani Reijnders will boost Pep Guardiola's midfield options following the departure of Kevin De Bruyne.