MILAN — Inter Milan beat local rival AC Milan 1-0 in front of a sell-out crowd at San Siro to move top of Serie A Sunday, as Mario Balotelli failed to make an immediate impact against his old club on his second debut for the Rossoneri. “It was a bit of a strange derby as it's only the third round, the teams aren't at their best yet,” Inter coach Roberto Mancini said. “We had character and we made the most of the few chances we got.” Fredy Guarin celebrated his 100th league appearance with a stunning goal after Milan had wasted a number of chances. Balotelli, who rejoined Milan on loan from Liverpool last month, hit the post and went close with a free kick. “I can be happy because despite everything we didn't deserve to lose,” Milan coach Sinisa Mihajlovic said. “We played well. We did everything we prepared in the week but we just lacked a goal. I'm not happy with the result but I'm happy and confident because playing like this we can do good things this season.” Balotelli started his career at Inter before moving to Manchester City in 2010 and he came off the bench to deafening boos from the home fans shortly after the hour mark. Milan coach Sinisa Mihajlovic was also loudly jeered. He spent two seasons as a player with Inter and was also assistant coach during Roberto Mancini's first spell in charge. “We have to go slowly we can't judge Mario after just a bit of a game,” Mihajlovic said. “Certainly he did well but he has to continue like this.” Inter is the only team still with a perfect record after Sassuolo, Palermo and Torino all dropped their first points of the season. Elsewhere, Alessandro Matri had a dream Lazio debut, scoring a second-half brace to beat Udinese 2-0. Bilbao ends dismal start Athletic Bilbao ended a dismal run of two defeats in their opening two games when Aritz Aduriz struck twice and Raul Garcia scored on his debut to help the Basque club to a 3-1 victory over Getafe in La Liga Sunday. Striker Aduriz opened the scoring in the sixth minute at the San Mames with a trademark header before midfielder Garcia, who joined from Atletico Madrid last month, nodded in a second in the 24th minute. Emiliano Velazquez pulled back a goal for the visitors in the 70th minute before Aduriz steered in his second seven minutes from time. “The important thing is that the team won,” Garcia told Spanish television. “I am happy with the goal but more so because of the victory,” added the 29-year-old, who played a key role in Atletico's resurgence in recent years. Villarreal, who like Bilbao are competing in this season's Europa League, and Celta Vigo also have seven points after Villarreal won 3-1 at Granada and Celta squandered a 3-1 advantage to draw 3-3 at home to 10-man Las Palmas Sunday. Las Palmas goalkeeper Javi Varas was shown a straight red card in only the 11th minute at Celta's Balaidos stadium but the promoted visitors nonetheless recovered to claim a point. Villarreal and Celta were joined on seven points by lowly Basque club Eibar, which missed a chance to make it three wins out of three when they were held to a 0-0 draw at Malaga. — Agencies