Bayern Munich coach Jupp Heynckes has said there were no celebrations when his players watched the Champions League draw come out but Sevilla head into Tuesday's tie as the overwhelming under-dogs of the quarter-finals.
Only Roma, who play Barcelona on Wednesday, might claim to face a more formidable task in the last eight but the Italians have at least grown familiar with the competition's knock-out rounds in recent seasons.
This will be Sevilla's first ever appearance in a Champions League quarter-final.
"The team was not euphoric [at the draw]," Heynckes said. "They reacted very calmly, as though they just had a beer.
"Of course, Real Madrid, Barcelona, Manchester City are playing very well, Liverpool are playing well, but we had five English teams through and we were talking about the best league in the world - three of them are gone. So we must take these guys seriously."
"If you watched them play against United, even after the 1-0 lead they noticed that United needed two goals and they played really good football. We can't afford to celebrate already."
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