Sergio Aguero was City's outstanding performer but it was Tevez who grabbed the headlines on his first start since his infamous dispute with the club was concluded.
Mancini said: "I am pleased with all the players because it was important to come back and play like one month ago and to score four goals.
"I am happy for Carlos because he scored a goal. He is not ready to play 90 minutes, it is difficult.
"If Carlos continues to play he can improve his performance."