Sergio Aguero returned to form yesterday with two goals as Manchester City beat West Brom 4-0.
There have been reports that new City boss Pep Guardiola might be willing to part with the striker.
But, speaking after the game, he said: “We need Sergio. We know how important he is for us when he can convince us how good he is and how important he is for this club.
“He is part of the history for this club. I would like to help him. Still, he can write the most brilliant images for himself in this club.
“He is one of the best. I am going to help him to be much, much better. That is my target. So that every game he feels how important he is. I’m so, so happy for him because with all of that he is one of the nicest people I have met.”