The two teams face off again on Thursday in the Round of 16, kicking off at 20.05 GMT.
“I think the victory was useful to understand many things going into the European challenge with Fiorentina,” said Asamoah.
“We are analysing our errors on the footage to understand how we should approach the game on Thursday.
“Every match has its story and so much depends on how we behave on the field. That is why we are always working to improve ourselves.”
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