http://www.bbc.co.uk/sport/0/football/17702751 Manchester City boss Roberto Mancini has warned Saturday''s game against Norwich could be harder than the Manchester derby. City will cut Manchester United''s lead at the top of the table to two points if they win at Carrow Road. "United is easy," he said. "We could lose or we could win, but it is easy. "Against United or Chelsea, our concentration will be 100%. Norwich will be tough because we have had two days to recover after West Brom." Translation: Man City are worried!