It was a slip of the tongue that would come back to hurt him badly. Heynckes had already made one rash public promise at Bayern in 1990, when after winning the title he told supporters on Munich’s Marienplatz: ‘I promise you, next year we’ll win the European Cup.’ They did not, and by October 1991 he was gone. After Bayern he rebuilt his career in Bilbao.\n\nThen Eintracht vice-president Bernd Hölzenbein brought his old Germany teammate back to the Bundesliga.