Negotiations between Barcelona and Konrad de la Fuente over a new deal have broken down with sources telling ESPN the American is keen to join former United States national team coach Jurgen Klinsmann at Hertha Berlin.
De la Fuente, 18, has been in talks with Barca over a contract extension for several months. The forward's terms expire in the summer but club sources said in November they were confident of striking an agreement with the U.S. youth international.
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However, De la Fuente's head has been turned by the interest shown in him by Hertha Berlin and the chance to play top-flight football in a league where many Americans have broken through.