The Milan derby, which saw Roberto Mancini return to the Inter dugout, ended in a 1-1 draw on Sunday night.
Inter held AC Milan to a 1-1 derby draw in Serie A on Sunday, while Cagliari rallied to claim a 3-3 draw at Napoli.
Sampdoria rose to third in Serie A after a 2-2 draw against AC Milan on Saturday, while Sassuolo and Atalanta also drew.
Jeremy Menez's penalty rescued a 2-2 draw for 10-man AC Milan at Sampdoria in a hard-fought contest on Sunday.
Filippo Inzaghi has promised that AC Milan will rise again after last weekend's home defeat to Palermo.
Nigel de Jong is open to contract extension talks at AC Milan, with his current deal due to expire next summer.
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