Mancini's bold statement is a clear signal of intent from the new City boss that he is determined to take advantage of Manchester United's problems this season and tackle Ferguson head-on.
Asked about the banner a large number in black and white draped across the Stretford End which is updated every season to taunt City over the last time they won a major competition nearly 34 years ago Mancini vowed to deliver a trophy and knock United out of the Carling Cup.
Tear it down: Roberto Mancini has vowed to rip the Old Trafford banner mocking City's trophy wait apart this term
The last time City won a trophy was in the 1976 League Cup.
'When we go to Old Trafford we will take that banner down,' said Mancini. 'This is the last year because we will win.
'I am well aware how long it is since City last won a trophy and this season we have a great opportunity to put that right.'
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