Mancini is delighted with the way the former Wolfsburg striker has bedded down at Eastlands.
"I think Edin is one of the best strikers in Europe, but it has not been easy for him to start in a new team in January. He has to get to know new team mates and a new league, but I'm happy with him because I think he will be one of the best strikers in England in the months and years ahead," Mancini told City's website.
"We have three strikers in Edin, Carlos and Mario but there are times when I think they can't play together. But when they do, it's important that all three strikers work in the defensive phase as well, otherwise it becomes very difficult for us. It's only the first half tomorrow, I hope we can get a goal and we will try to win."