9-man AC Milan loses 2-1 at Udinese in Serie A

The loss heaped more pressure on Milan coach Massimiliano Allegri, although he remained defiant despite starting the season with just one win and three defeats in Serie A.

"There's no sense talking about me being sacked, it's not up to me to decide," Allegri said. "There's no problem on my side, nor on the club's. I have never felt a lack of faith from the club. The club has said I'm staying and that's fine. Our relationship is really good as it has always been."

Milan Vice President Adriano Galliani also said Allegri "has the president's complete confidence, and mine. We are at his side."

Mathias Ranegie gave Udinese the lead five minutes from halftime, but Stephan El Shaarawy leveled 10 minutes into the second half.

However, Cristian Zapata was sent off for a second yellow card for bringing down Ranegie in the area shortly after the hour mark, and Antonio Di Natale fired home the resulting penalty.

Milan's night just got worse when Kevin-Prince Boateng was also dismissed for a second bookable offense.

It was Udinese's first win of the season.

"It's a defeat but we played well," Allegri said. "We still have to improve. We have to remain united because we have the quality to come back. I don't feel like a victim or the one to blame. I was also being blamed when we had a four-point lead. Last season at this time we had two points more. If we win on Wednesday, we'll have a point more (than last season)."

Elsewhere, Inter Milan was booed off the field after losing 2-0 at home to bottom-place Siena. Neither Milan team has won at home on the new San Siro pitch in any competition this season.

Siena also picked up its first win of the campaign thanks to goals from Simone Vergassola and Francesco Valiani.

It is the first time goalkeeper Samir Handanovic — who was signed from Udinese in the offseason — has conceded for Inter in Serie A.

Juventus — which beat Chievo Verona on Saturday — now has sole lead of Serie A and is the only team to still have a perfect record after Lazio lost at home to Genoa, Sampdoria drew against Catania and Napoli was held by Torino.