Aguero: We'll win more titles

City's second UEFA Champions League campaign began with a dramatic last-gasp 3-2 defeat to Real Madrid at the Bernabeu Stadium.

Aguero, who was linked with the Spanish champion last season, watched a pulsating encounter unfold from the bench as an unused substitute and is convinced City will bounce back.

The former Atletico Madrid player tweeted after the game: "I feel comfortable and appreciated in @MCFC - it's a project I feel involved in. We want more titles and we'll get them!"

And to underline his commitment to the club after returning to a city where he is always the subject of press interest, he added: "Just to make it clear - I'm very happy to be in @MCFC. It's the best decision I could have taken."

Aguero, 24, scored 30 goals for City last season after joining the Barclays Premier League champions in a £38 million ($59 million) club record deal.

He is yet to make an impression this season having suffered a knee injury in the opening Premier League fixture against Southampton last month.

He had hoped to make his return in the Spanish capital but events prevented manager Roberto Mancini bringing him on.

Mancini said: "I had two players injured, (Samir) Nasri and Maicon. I wanted to play Aguero in the last 20 minutes."

City was beaten in a remarkable finish as Karim Benzema and Cristiano Ronaldo struck for Real Madrid in the last three minutes.

Aleksandar Kolarov had looked to have snatched an unlikely win when his free-kick bounced through the penalty area to find the net six minutes from time.

Edin Dzeko and Marcelo had earlier traded goals after the host had dominated the first hour.

The result leaves City playing catch-up in a tough-looking Group D that also includes Borussia Dortmund - also a winner on the opening night - and Ajax.

Mancini said: "I think other teams will lose here. Now we have five games and it is important we beat Dortmund next game at home.

"We know it will be difficult playing against a top team but this year we want to go through."

City failed to get beyond the group stage in its first Champions League campaign last year.

Captain Vincent Kompany tweeted: "Thanks to the huge number of travelling fans. This game will give us the desire to improve again. Eventually we will get there."