Rainer Bonhof – Only Not Successful as Coach: Bonhof was Germany’s first naturalized international. In 1969, while still holding Dutch citizenship, he made his first junior appearance for Germany. He then adopted German citizenship.\n\nFrom 1970 to 1978 he played for Borussia Mönchengladbach, winning four titles, the DFB Cup and the UEFA Cup.
But when he returned as coach in 1998, his spell ended in disaster: he oversaw the club’s first relegation from the Bundesliga and was dismissed after three straight defeats at the start of the second-division campaign. Hans Meyer, the Communist, replaced him.