Born in Vienna, Hasil started his career at local giants
Rapid Wien, winning three league titles and one cup. After one season in
West Germany with
Schalke 04, he moved to
Feyenoord where he played under fellow Austrian
Ernst Happel, winning the
European Cup and the
Intercontinental Cup in 1970, and the
Eredivisie in 1971. He was sold to
Austria Klagenfurt for €23,000 in 1973. ==International career==