Goellner reached the quarterfinals of the 1997 Rome Masters, defeating top tenners Richard Krajicek and Albert Costa en route.
The son of a German diplomat, Goellner lived in Rio de Janeiro, Tel Aviv & Sydney as a youngster before moving to Germany in 1986.
The surname of his family is Göllner, but since most languages don't use umlaut, the Brazil authorities wrote Goellner in his birth certificate.
And Goellner was a member of the German team which won the 1993 Davis Cup, winning important singles rubbers in the quarter-finals, semi-finals and final.
His best singles performance at a Grand Slam event came at the French Open in 1993, where he reached the fourth round before losing to Andrei Medvedev.