 Pari gbolohun ti o tẹle: Akoko ti o ṣe pataki julọ ti iṣẹ ṣiṣe ere rẹ ni pẹlu Hamburger SV, pẹlu ẹniti o gba awọn akọle Bundesliga mẹta, 1977 European Cup Winners Cup Final ati : 1983 European Cup Final, tí ó gba góòlù nínú Final méjèèjì. O tun gba awọn agbabọọlu kariaye 43 fun ẹgbẹ agbabọọlu orilẹ-ede West Germany, ti o gba UEFA Euro 1980 ati de awọn ipari idije World Cup meji lẹsẹsẹ. 