Man City boss Mancini: Important to win my first derby
The Blues head to Old Trafford next Wednesday for the second leg of their Carling Cup semi-final knowing a draw will be enough to secure their first trip to Wembley in 29 years.
"It was important to win my first derby - but I want to win my second as well," said Mancini.
"I wasn't nervous. But Manchester United are a big team and I know it is going to be difficult."
Mancini's immediate focus is City's FA Cup tie at Scunthorpe, when Stephen Ireland is likely to be among a large number of changes.
Patrick Vieira could also come into contention if he can shrug off a calf problem that has plagued the Frenchman since his arrival from Inter Milan.
Mancini is saying all the right things ahead of the trip to Glanford Park, insisting: "We want to win that cup tie as well, because the FA Cup is important too."