AC Milan cruised to a 3-0 win over Brescia and re-established a three-point lead over Lazio in Serie A on Saturday.
Kevin-Prince Boateng, Robinho and Zlatan Ibrahimovic scored in the first half for the Rossoneri, who stretched their undefeated streak to six matches.
Earlier, AS Roma wasted a two-goal lead in a 2-2 draw at Chievo Verona.
Milan leads with 33 points; Lazio has 30; Juventus and Napoli 24; and Palermo, Inter and Roma 23.
Boateng scored his first Serie A goal in the fourth minute, redirecting a pass from Ibrahimovic at the edge of the box. Robinho then took advantage of a defensive error to double the lead in the 28th and Ibrahimovic evaded three defenders before sending in a shot just under the crossbar three minutes later.
In Verona, Brazilian midfielder Fabio Simplicio scored twice for Roma in the first half before Davide Moscardelli and Pablo Granoche hit back for Chievo in the 61st and 83rd.
Roma midfielder Daniele De Rossi was sent off for a direct card in the 86th after tripping Moscardelli.
The pitch at Bentegodi Stadium was in poor shape following a recent rugby international, and Roma coach Claudio Ranieri likened the match to "beach soccer."
Moscardelli's goal came after Roma midfielder Rodrigo Taddei was charged with a foul for standing a meter inside the pitch for a throw in, apparently confused by painted lines remaining from the November 13 Italy-Argentina rugby match.
Chievo was awarded the ball and promptly scored.