Man City boss Mancini delighted with Dzeko form
Mancini believes the striker could prove a key man after grabbing three goals in two league games against Norwich and Stoke.
Mancini said: "It's important Edin plays like he did against Norwich and Stoke.
"If he plays like he did against these two he could be important.
"If Edin continues to score, I don't think we can have a problem."