The City boss admitted his team missed the opportunity to score more goals, but was pleased with three more crucial points.
“We played well and I thought Mario Balotelli had a good game, though he did miss a number of chances,” said the Blues’ boss.
“We rested one or two players today and I left Silva, Aguero, Kolarov because we had everybody fit except Micah who was injured.
“Pablo Zabaleta had a problem and had to come off as well so now we have two injured right-backs which is a problem, but we will see how things go next week.”
Mancini also praised Kolo Toure who played the majority of the game at right-back – his first appearance since January 3.
“Kolo played very well and did a great job today because he hasn’t played for several weeks,” he said. “He came on and defended and went forward well so I am pleased for him.
“Today was important because we have taken three points and we need to keep winning because Manchester United are a very good side.
“If we could win the next ten games, we would win the title. We just need to keep playing the way we are and we will have a very good chance.”