Disagreement over training compensation sometimes produces legal battles in order to escape the payment, which Matthias Lepiller was signed in 2006 by Fiorentina, however an appeal in the Court of Arbitration for Sport (CAS) was rejected in 2011, five years after Lepiller left the club. Clubs also arranged special transfer agreement in order to lower the actual signing cost. For example, Attila Filkor joined a Maltese club as free agent and immediately sold to Inter Milan. As the schedule of rates between Maltese and Italian top division were different, cost was saved until Filkor's mother club sued Inter to FIFA.