Inter missed out against Juventus in the previous match (0:2), fell apart against Bologna, while Atalanta entered the counter-rhythm, and Roma won a point in Sassuolo.
Inter celebrated 6:1, although Bologna took the lead in the middle of the half, with a goal by Likoyanis.
By halftime, the home team had scored three goals, and in the rest, as many more - Di Marco was a double scorer, Dzeko, Lautaro, Calhanoglu and Goossens scored one each.
With the win, Inter tied with Atalanta with 27 points each, as the team from Bergamo suffered a second straight defeat in Leće (2:1).
Leće recorded only their second win this season, the first at home, and this was Atalanta's first away defeat.
The home team led 2:0 with goals from Baskirotto in the 28th minute and Di Francesco in the 30th minute, while the only scorer for Atalanta was Zapata in the 40th minute.
Sassuolo and Roma played 1:1 in a duel in which goals were scored in the last ten minutes.
Roma took the lead with Abraham's goal in the 80th minute, and Pinamonti equalized five minutes later.
"This was a good performance by my team, but the betrayal of one player. 16 of them played, and one of them betrayed us with an unprofessional attitude and behavior. I will not say who it is, but I told him that he can go in January, although I know that it won't, because there is nowhere," was the mysterious Jose Mourinho, coach of Roma, after the match.
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