Kaka scored a contested penalty to help AC Milan cut the gap on Serie A leaders Inter to a point with a 1-0 home win over Chievo.
The Brazilian picked himself up to score after appearing to be tripped just outside the box on 15 minutes, with second-placed Milan just about edging the game despite some nervous moments.
Napoli also scored thanks to a dubious spotkick but failed to join Milan on 26 points after two late goals gave Atalanta a 3-1 home win.
Champions Inter won 2-0 at Palermo yesterday thanks to Zlatan Ibrahomivic's superb double. AS Roma and Lazio meet in the Rome derby in today's late game.