"But they will have to come out and we are good on the break."
Midfielder Stephen Ireland is also confident that City will get a good result in the return leg on Thursday 19 March.
However, he conceded that his side should have added to goals by Felipe Caicedo and Shaun Wright-Phillips and made their passage to the quarter-finals more certain.
"We should have finished the game off here," he said.
"When we go there next we have to be clever and not concede too early and get on the back foot, but we've done well away from home in Europe this season.
"I think we're strong and peaking at the right time of the season. We're feeling confident going there."
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