Zlatan Ibrahimovic scored twice as AC Milan regained their three-point lead at the top of Serie A with a victory at Cagliari.
Inter Milan’s win over Juventus on Sunday had put them level on points with Stefano Pioli’s side.
Ibrahimovic, who now has 13 goals from 13 matches this term, won and converted a penalty to open the scoring.
His second after the break ensured a comfortable evening for Milan, who had Alexis Saelemaekers sent off.
Ibrahimovic’s efforts in front of goal mean Milan have now scored in 19 consecutive away fixtures in Serie A to equal their best ever run in the competition.
That came during Fabio Capello’s first stint in charge of the club and cut across the 1991-92 and 1992-93 campaigns, when the Rossoneri went on to win the Scudetto in both seasons.