Teun Koopmeiners scored a double as Atalanta thrashed Sampdoria 4-0 in the Serie A fixture in Bergamo on Monday.
Juventus beat Salernitana 2-0 in the Serie A fixture at Stadio Arechi on Tuesday.
Juventus edged past Fiorentina 1-0 in the Serie A fixture in Turin on Saturday courtesy of Juan Cuadrado's stoppage time goal.
Cristiano Ronaldo scored a late winner as Manchester United came from behind to beat Atalanta 3-2 in the Champions League group stage fixture on Wednesday at Old Trafford.
AC Milan continued their impressive start to the Serie A season as they beat Atalanta 3-2 in Bergamo on sunday.