Hyypia says United cannot afford to be knocked out of the competition early, as they were last season.
Hyypia said: "David Moyes has a little bit more experience and is manager of a big club, playing at home, with big expectations in the Champions League this season. What happened last season can't be the same again.
"We can be quite relaxed and enjoy tomorrow night. That is the main thing for our players. We need to give United respect but not too much."
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