Milan now trails Inter Milan by six points with four rounds remaining in the Italian league.

Inter leads with 70 points, AS Roma is second with 68 and Milan is third with 64.

Inter beat 10-man Juventus 2-0 Friday. Roma faced city rival Lazio in the Rome derby later Sunday with a chance to go top again.

Also Sunday, it was: Atalanta 2, Fiorentina 1; Bari 1, Napoli 2; Cagliari 2, Palermo 2; Catania 2, Siena 2; Parma 2, Genoa 3 and Udinese 1, Bologna 1.

The victory moved Sampdoria into fourth place, which gets the final Champions League berth.

Sampdoria has 57 points and Palermo, which needed late goals from Fabrizio Miccoli and Abel Hernandez to draw at Cagliari, dropped to fifth with 55. Napoli, which scored two goals through Ezequiel Lavezzi, has 52 points. Juventus is seventh with 51.

Italy forward Antonio Di Natale scored his league-best 24th goal in added time to secure a draw for Udinese.

Milan had gone ahead in the 20th with a goal from Marco Borriello, but Antonio Cassano equalized with a penalty in the 54th after Milan defender Daniele Bonera was sent off for fouling the Sampdoria forward.

Borriello scored with a header following a corner - his 14th goal this season, boosting his candidacy for Italy's World Cup squad. However, he then picked up a yellow card that will prevent him playing Palermo next week.

A couple of Serie A clubs took longer than usual to travel to Sunday's games due to the volcanic ash plume shutting down aviation in northern Italy.

For its game against Catania, Siena had to travel part of the way to Sicily by bus, then got a flight from Rome.

Fiorentina took a train to Milan, then made its way to Bergamo by bus.