The midfielder who played for German club Club an der Alster and Spanish club Club de Campo made his international senior debut for the national team on 10 July 1999 in a friendly against South Korea in Leipzig. As of 12 December 2005, Biederlack earned 139 caps for his native country, in which he scored eleven goals.
^Staff (2008-07-04), Team Hamburg - Athleten (in German), Team Hamburg of the Hamburg Sport Federation and the Olympic point Hamburg/Schleswig-Holstein, archived from the original on 2008-08-16, retrieved 2008-08-17