"I am very pleased because we won against a very strong team," the Chilean told reporters. "It is not easy to play against them. They have a lot of possession of the ball.
"We played too quickly in the first half after the goal. We lost too many balls and they started attacking but in those moments we defended very well.
"That was important. I just remember one clear chance of Swansea in the first half. In the second half we improved with the ball. We scored two goals more and we had three or four clear chances."
City travel to West Bromwich Albion on Wednesday.