AC Milan could only qualify for the UEFA Europa League (UEL) next season as a result of falling to a shock 2-1 defeat in Serie A against Cagliari at San Siro.
Juventus' season is at risk of turning into a disaster ahead of Sunday's fraught Turin derby which could end with their absence from next season's Champions League.
Italian Serie A club Udinese said on Saturday it was fully supporting striker Keinan Davis who claimed he was subjected to racist abuse during their 2-0 win at Cagliari.
Serie A strugglers Cagliari defeated European hopefuls Atalanta BC 3-2 at Unipol Domus to record successive top-flight home victories for only the second time in two seasons.
Inter Milan moved a step closer to securing the Serie A title after beating Cagliari 3-0 at the San Siro, moving the Nerazzurri 12 points clear at the top of the league.
Inter Milan will be without captain and top scorer Lautaro Martinez for Sunday's Serie A match against Como, the Italian league leaders said.
SSC Napoli made it four straight wins in Serie A, earning a deserved 1-0 win over Cagliari, who are now seven league games without victory (D2, L5).
