Leaders Inter Milan are the last remaining team with a clean slate in the Italian championship after four rounds.
The Champions League finalist triumphed in the derby against local rivals AC Milan, who had previously won three times, 5:1 (2:0) and successfully defended their lead in the table with the highest result in a local duel between their Lombard arch rivals in 49 years.
Two points behind Inter, record champions Juventus Turin also moved up past Milan to second place with a 3-1 (2-0) win against Lazio Rome.
Defending champions SSC Napoli can also overtake the humiliated Rossoneri on Saturday evening if they win at FC Genoa 1893 and push them out of the leading trio.
Ex-BVB star shines with a double pack
Three former Bundesliga professionals left their mark on the Milan derby at Inter. Former Dortmund player Henrikh Mkhitaryan stood out with two goals (5th/69th).
Ex-Gladbach player Marcus Thuram (38th) and former Hamburg and Leverkusen player Hakan Calhanoglu (79th, penalty kick), who moved from AC to Inter Milan two years ago, also contributed, as did Davide Frattesi (90th + 3). in the top scorer list.
For the “guests”, in which national player Malick Thiaw was part of the starting line-up, Rafael Leao (57th) was only able to shorten the score temporarily.