Juraj Kucka's 89th-minute header lifted Genoa to a 3-2 win over Inter Milan after the Grifoni twice hit back from a goal down.
Inter Milan suffered a setback in their pursuit of a place in Europe next season after falling to a 2-1 defeat to Juventus.
Inter Milan are in danger of missing out on a European place after goalkeeper Samir Handanovic gifted champions Juventus a 2-1 victory.
Inter Milan are determined to sign Yaya Toure from Manchester City, according to club president Erick Thohir.
Napoli's hopes of Champions League qualification suffered a setback as they drew 2-2 at rock-bottom Parma in Serie A on Sunday.