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Daniel Schwaab represented Germany at three levels, from the U15s to the U21s. He made his debut for the U15s in 2008 and went on to play for the U16s, U17s, U18s, U19s, and U21s. He was a member of the U17 team that won the 2011 UEFA European Under-17 Championship and the U19 team that won the 2012 UEFA European Under-19 Championship.