Man City's Roberto Mancini says the way to beat Man Utd - "You can win against them only if you play very strong, you play very concentrated." Roberto Mancini: "Our mentality will be more strong because we beat United - and United played with their best team. "(They were) without (Wayne) Rooney, but we played without (Carlos) Tevez. "You can win against them only if you play very strong, you play very concentrated. "If not, it's a difficult day. They win because they have more experience. "But now, if we work, we can arrive very, very close to them." Supporters at Old Trafford never tire of reminding their city rivals of the length of their silverware drought, annually updating a banner that hangs at the Stretford End with the length of time it has been since they last won anything. It recently ticked around to 35 years and City boss Mancini said: "They can take off this banner. We hope we can take it off this year."