AC Milan were left still searching for their first win of the season after being held to a 1-1 draw by unbeaten Udinese.
Antonio Di Natale continued his record of scoring in every league game this season with the opening goal in the 29th minute, but Stephan El Shaarawy levelled with his first goal in Serie A after 63 minutes.
Milan spent most of the second half on the attack but Udinese still managed to create the best chances to win the game and were ultimately unfortunate not to extend their perfect start to the season.
Milan's hopes of picking up their first three points of the season were dealt a blow in the 21st minute when Alexandre Pato limped off after appearing to pull his hamstring. He was replaced by El Shaarawy, making his first appearance at the San Siro.
Di Natale is no stranger to this stadium, on the other hand, and he scored his eighth goal here in the 29th minute to put Udinese in front.
Gabriel Torje's cross did not appear to pose too great a danger to Christian Abbiati in the Milan goal but he somehow fumbled the ball to the feet of Di Natale, who accepted the gift for a tap-in at one of his happiest hunting grounds.
Milan almost levelled just before the break when Danilo gave away a needless free-kick on the edge of the penalty area with a foul on Antonio Cassano and Clarence Seedorf sent his shot inside the wall and against the left-hand upright.
Milan increased the pressure in the second half, with Udinese resorting to a more defensive approach.
Cassano missed a chance in the 59th minute when he beat the offside trap, but was denied by Samir Handanovic's alertness.
The Italy international then turned provider for El Shaarawy to mark his home debut with a goal, shooting low across Handanovic and in off the base of the far post.
The woodwork was rattling at the other end in the 75th minute when Giampiero Pinzi's shot struck the inside of the post and rolled agonisingly along the goal line as Udinese looked for their chances on the counter-attack.
And Udinese had the best chances to win the game as Ahmed Benatia forced Abbiati into a save at full stretch with just three minutes left and the keeper made a one-handed stop to deny Di Natale a minute later.