Friedrich and his brother Dragutin began playing at the NK Slaven Belupo but soon left for the HAŠK club in 1923 although Krešimir was mostly a reserve player in the latter team.
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He and his brother Ferdo began visiting the local tennis courts in Koprivnica in their youth, frequenting the same club where contemporary painter and eventual fifth-ranked national player and subsequent Davis Cup captain Fedor Malančec trained at the time.
Friedrich Nietzsche | Friedrich Schiller | Friedrich Engels | Carl Friedrich Gauss | Karl Friedrich Schinkel | Friedrich Dürrenmatt | Friedrich Hayek | Caspar David Friedrich | Georg Wilhelm Friedrich Hegel | Friedrich Hölderlin | Friedrich Gustav Jakob Henle | Friedrich Ebert | Friedrich Wilhelm Joseph Schelling | Karl Wilhelm Friedrich Schlegel | Friedrich Gulda | Friedrich Rückert | Friedrich Paulus | Johann Friedrich Böttger | Friedrich von Huene | Friedrich List | Friedrich | Christian Heinrich Friedrich Peters | Johann Friedrich Blumenbach | Friedrich Wilhelm Freiherr von Bülow | Friedrich Specht | Friedrich Schleiermacher | Friedrich Schlegel | Friedrich Karl Dörner | Friedrich Fröbel | Friedrich de la Motte Fouqué |