 Complete the following sentence: Wiesław Czaja born 12 April 1952 is a Polish former volleyball player and coach, member of the Poland mens national volleyball team in 19741980, 1974 World Champion, silver medallist of the European Championship Wesław Czaja is a Polish former volleyball player and coach, member of the Poland mens national volleyball team in 19741980, 1974 World Champion, silver medallist of the European Championship Wesław Czaja is a Polish former volleyball player and coach, member of the Poland mens national volleyball team in 19741980, 1974 World Champion, silver medallist of the European Championship Wesław Czaja is a Polish former volleyball player and coach, member of the Poland mens national volleyball team in 19741980, 1974 World Champion, silver medallist of the European Championship  : 1975, 1977, 1979 ti ṣe àtúnṣe. Ó kópa nínú ìdíje Òlíńpíìkì Ọdún 1980 tí wọn ṣe ní Moscow, tí ó parí ní ipò kẹrin pẹlú ikọ agbábọọlù orílẹ-èdè Poland. 