Nasri hopes City can produce a response similar to the one they mustered after being humbled by Bayern Munich in October.
City were outplayed as they lost their home group match to the reigning champions 3-1 but they won the return match in Germany in December 3-2.
Nasri said: "It is a different game but why not? We went to Munich and we won. We could do the same.
"I think it is not over. It was a close game and then the referee made a mistake.
"It was not a pen, it was a free-kick. We still have a chance and we are going to play the game there without fear and try to score as soon as possible."
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