(ANSA) - BELGRADE, SEP 11 - Yet another shift in Novak Djokovic's life. According to international press reports, the former No. 1 tennis player is preparing to move to Greece after Serbia labelled him a "traitor." Djokovic flew to Athens with his family after Aleksandar Vučić's government criticised him for supporting student protests calling for new elections. Serbia, which has always regarded Djokovic as one of the country's most valuable assets and praised the champion's achievements, now considers him a traitor for supporting the protests. This is thought to have influenced Djokovic's recent decision to leave Belgrade and relocate with his family to Athens. According to reports, the Serbian has already enrolled his two eldest children, Stefan and Tara, in a capital school and trained with his son at an Athens tennis club. (ANSA).