Fiorentina and Genoa were jeered off the field after both teams escaped relegation with a dismal goalless draw on Sunday.
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A late Domenico Criscito penalty earned Genoa a 1-1 draw at home to Cagliari, but Cesare Prandelli's side remain at risk of relegation.
Atalanta took another big step towards their first Champions League participation when a 2-1 over Genoa lifted them to third in Serie A on Saturday.
AS Roma's Antonio Mirante saved a stoppage-time penalty to earn a point in a 1-1 draw at Genoa in Serie A on Sunday.
Torino boosted their chances of qualifying for the Champions League by winning 1-0 at Genoa whose fans stayed away in protest at the owner.
Juventus were forced to put their Serie A title celebrations on hold after second-placed Napoli drew 1-1 at home to 10-man Genoa on Sunday.
Mauro Icardi scored on his first Inter Milan appearance in almost two months to help his side extend their lead in third place with a 4-0 win.
Stefano Sturaro and Goran Pandev scored the goals as Genoa beat Juventus 2-0, with Paulo Dybala's finish for the visitors overturned by VAR.
AC Milan have completed a deal to sign Krzysztof Piatek from Genoa on a four-and-a-half year contract.
Second half goals from Fabio Borini and Suso were enough for Milan to beat Genoa, who were without the suspended Krzysztof Piatek, 2-0.