Juventus will have to wait another week to secure their status as Serie A champions after falling to a 2-1 defeat at Torino.
German Denis' last-gasp goal earned Atalanta a valuable point against Empoli on Sunday in Bergamo.
Neither side could find the net in the Milan derby, while Roma missed the chance to go second.
Roma missed a chance to reclaim second place in Serie A after being held to a 1-1 draw at home by Atalanta on Sunday.
German Denis struck twice as relegation-threatened Atalanta beat Sassuolo 2-1 at home on Sunday.
Torino maintained their push for European football with a 2-1 victory at Serie A strugglers Atalanta on Saturday.
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