Manchester City boss Roberto Mancini is calling for more from Samir Nasri ahead of Sunday's clash with his former club Arsenal.
Nasri has failed to command a regular spot in Mancini's impressive side since his high-profile £24million move from the Gunners in August. The France international showed glimpses of his talent as he made four successive starts recently but he was back on the bench as the Barclays Premier League leaders lost at Chelsea on Monday.
Mancini said: "In my opinion Nasri is a champion - a top, top player. I think he can do more but when you change teams you can have a problem. At this moment his confidence is maybe not very good because he didn't play against Chelsea but if he plays Sunday he has a chance to show us."
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