Capital rivals Roma and Lazio picked up valuable wins yesterday but failed to make up any ground on Inter Milan after the leaders emerged victorious from the Milan derby.
Swedish striker Zlatan Ibrahimovic scored the winner as Inter bounced back from their disappointing exit from Europe in midweek with a 2-1 triumph.
Ibrahimovic struck with 15 minutes remaining to give the Serie A leaders a deserved victory in a thrilling encounter at a sold-out Giuseppe Meazza stadium.
Substitute Julio Cruz had levelled the score shortly after the restart to cancel out Ronaldo’s first-half strike against his former club.
Two goals from captain Francesco Totti inspired Roma to a 3-1 victory over Udinese which keeps them 16 points behind Inter.
Lazio leapfrogged Palermo to climb to third after a 3-2 win over Reggina, Palermo were held to a 1-1 home draw by Fiorentina, Empoli drew 2-2 with Livorno, Torino beat Catania 1-0, and Ascoli saw off Siena by the same score.
Parma were held to a 1-1 draw at Atalanta, the same score between Chievo and Messina.