Lazio are potentially just one win away from booking their place in the Champions League after beating Sampdoria 1-0.
Inter Milan are in danger of missing out on a European place after goalkeeper Samir Handanovic gifted champions Juventus a 2-1 victory.
Napoli's hopes of Champions League qualification suffered a setback as they drew 2-2 at rock-bottom Parma in Serie A on Sunday.
Roberto Soriano struck twice as Sampdoria halted a six-match winless run with a 4-1 triumph at Udinese.
Juventus wrapped up a fourth straight Serie A title on Saturday evening thanks to a 1-0 win at Sampdoria.
Sampdoria were held to a 1-1 draw at home by Hellas Verona in Serie A on Wednesday night.