Born in Romania, he was part of the Germany national team that won the 1954 FIFA World Cup.

[2] Posipal was born in Lugoj, Romania, to a father of German descent and a mother of Hungarian origin.

However Knöpfle soon discovered that Posipal was a strong defender and withdrew him from attack to a half back position.

Already a year later in 1950, West Germany national team coach Sepp Herberger intended to invite Posipal to join the squad for Germany's first international game after World War II, but officials found out that Posipal had a Romanian citizenship and not German.

His son Peer Posipal, who played for the Bundesliga team Eintracht Braunschweig, is a former professional football player as well.