Manchester City midfielder David Silva hailed the performance of Sergio Aguero for victory over Europa League opponents Porto.

Aguero struck after just 18 seconds and then hit the bar later in the first half.

He set up the second goal for Edin Dzeko 14 minutes from time and then made way for David Pizarro, who created a third for Silva and struck himself after Porto saw Rolando sent off.

Silva said: "The tie was in our favour at the start of the match, but it was obvious we would have to sit back and counter-attack, wait for them. We did and we did it well.

"Aguero is a great player. There is not much more you can say about him. He is just fantastic."