Jovetic has struggled with injury since his summer arrival from Fiorentina.
Pellegrini said: "I am very pleased. The idea was to give Jovetic at least 45 minutes but it was more important to win the game than think about individual players.
"I thought the 30-35 minutes he played he did very well.
"Jovetic is a mix. He's a midfielder and he played a lot of games for Fiorentina behind the striker or on the left wing.
"He can replace Samir Nasri or Aguero and that is very important for the team."
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