Friedrich reunites with Rose after previously working alongside the German coach at RB Leipzig between September 2022 and March 2025.
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The 13-year RB Leipzig staff member played a key role in developing the club’s analysis department, connecting coaching, scouting and sporting management.
He began his career as a part-time first-team Assistant Video Analyst while studying for a sports science degree.
Friedrich progressed through the academy and first-team setup as Leipzig climbed from Germany’s fourth tier to the Bundesliga.
He later became Head of Match Analysis, gaining Champions League experience and helping the club win two DFB-Pokal titles.