Milan:Adriano scored one goal and set up another to help Inter Milan beat Fiorentina 3-1 and extend its Serie A record run of victories to 13 on Sunday. The Brazil striker passed to Dejan Stankovic for Inter's first goal at San Siro in the 19th minute - after Luca Toni's header put Fiorentina ahead in the fifth - and scored with a powerful free kick in the 24th. Adriano's goal was his fourth in as many games and marked a full return to form for a player who, before Christmas, went nine months without scoring. "He was lacking fitness," Inter coach Roberto Mancini said of Adriano. "But once he regained it, things could only improve - for him and for us." Zlatan Ibrahimovic scored Inter's third in the 71st from close range. Inter fans made offensive chants against Real Madrid striker Ronaldo, who is reportedly seeking a move to city rival AC Milan. The fans also unfurled banners, one reading: "Ronaldo clown". Ronaldo played for Inter from 1997-2002. Francesco Toldo played instead of regular Inter goalkeeper Julio Cesar, who withdrew on Sunday morning with back trouble. Inter, which is unbeaten in the league, leads the Serie A with 54 points. AS Roma is second, 11 points behind, after drawing 1-1 at Livorno. Palermo is third with 39 points and was held to a 0-0 draw at Reggina on Saturday. "We haven't sewn up the title yet," Mancini said. "We just have to think about continuing to play like we did today." Fiorentina, which was penalised 15 points in the Italian match-fixing scandal, is 15th with 19 points. Also on Sunday, loan-signing Giuseppe Rossi scored to lead Parma over Torino 1-0; Siena rallied to beat Chievo Verona 2-1 on second-half goals by Luca Antonini and Daniele Portanova; Vincenzo Iaquinta's 76th-minute header gave Udinese a 1-0 win over visiting Messina; David Suazo's penalty helped Cagliari to a 1-0 win over Catania; and Empoli beat Sampdoria 2-0 to climb to fourth in the standings. In the late match, Milan was held to a scoreless draw at Lazio.