Fonsy Grethen (born 20 September 1960, in Luxembourg City) is a Luxembourgish [1] carom billiards player. During his career, he won four world titles and thirteen European titles.
Fonsy Grethen (born 20 September 1960, in Luxembourg City) is a Luxembourgish [1] carom billiards player. During his career, he won four world titles and thirteen European titles.