Manchester City boss Roberto Mancini knows matchwinner Edin Dzeko is "not happy".

Mancini admitted Bosnian forward Dzeko has been frustrated by his lack of opportunities - but he is certainly making an impact after grabbing a late winner against Tottenham.

He has now earned the champions nine points by coming on as a sub and is making a case for starting more regularly.

Mancini said: "Edin is not happy. But a player who is happy on the bench does not exist.

"We had three important strikers today, last year we won the championship because of goals from our strikers."