Dec 29 (Reuters) - Seven points at the turn of the year is a big ask for Manchester City to try to claw back in the defence of their title but more battling performances like Saturday's 4-3 win at Norwich City will stand them in good stead. Samir Nasri's debateable red card on 44 minutes hardly helped Roberto Mancini's side but an early double from Edin Dzeko, a Sergio Aguero strike and an own goal from goalkeeper Mark Bunn following a Dzeko effort sealed the victory. ... More...