klieger took a major part in the development of israeli sports as an executive and administrator. from 1951 to 1968 he served as the chairman of maccabi tel-aviv basketball club, and from 1970 to 1998 as the chairman of the maccabi ramat-gan omni-sport club. klieger was a member of the maccabi world union executive for 14 years. he was also a major fixture in the development of european basketball, participating in fiba's activities since 1951. he chaired fiba's media council and the basketball commission of association internationale de la presse sportive for over 25 years and was a press advisor to fiba's secretary-general and fiba europe secretary-general.