 Complete the following sentence: Włodzimierz Andrzej Stefański born 20 November 1949 is a Polish former volleyball player, member of the Poland mens national volleyball team in 19691980, 1976 Olympic Champion, 1974 World Champion, silver medallist of the European Championship Włodzimierz Andrzej Stefański is a Polish former volleyball player, member of the Poland mens national volleyball team in 19691980, 1976 Olympic Champion, 1974 World Champion, silver medallist of the European Championship Włodzimierz Andrzej Stefański, born 20 November 1949 is a Polish former volleyball player, member of the Poland mens national volleyball team in 19691980, 1976 Olympic Champion, 1974 World Champion, silver medallist of the European Championship Włodzimierz Andrzej Stefański, born 20 November 1949 is a Polish former volleyball player, member of the Poland mens national volleyball team in 19691980, 1976 Olympic Champion, 1974 World Champion, silver medalist of the European Championship  : 1975, 1977, Olùdíje Poland lẹẹmejì. 