This would be not the first case where the rules are "bent" for the sake of Djokovic family: https://birn.rs/teniski-centar-novak-do-novih-kvadrata-uz-ustupke-g

This would be not the first case where the rules are "bent" for the sake of Djokovic family: https://birn.rs/teniski-centar-novak-do-novih-kvadrata-uz-ustupke-gradske-vlasti/ https://birn.rs/teniski-centar-novak-do-novih-kvadrata-uz-us... (unfortunately I couldn't find the source in English; in short, they got some premium Belgrade land, which was initially planned for a public park, for their tennis academy)