In purely theoretical terms, the Spain squad is technically more advanced than the German squad, but tactically the German side has the advantage.
One should not take the group stages as an indication as to how a team will perform on the knock-out stage. Remember that in this particular field, Spain didn't also do a particularly good group stage performance on WC 2010 and yet they won the competition at the end.
Anything can happen in 90 minutes 
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