Yes it is really going to be an interesting match. Nottingham Forest are having their most successful season in the recent years. But recently their form is really poor. They won only once in their last 5 league matches. Their scoring statistics are also quite changing these days. But they are good against teams having weaknesses in their defenses. Manchester City didn't concede against Tottenham last week. Maybe they could be getting better in defense. If I bet on this match my choice would be to give Manchester City win a chance.