Career
The right-hander turned pro in 1986 and reached his career-high singles ranking on the Association of Tennis Professionals Tour of World Number. 49 in December 1989. His best performance at a Grand Slam came at the 1990 French Open, where he reached the fourth round. During his career, Kroon was known for the "Vicht" salute as a form of celebration.
This was later adopted by Lleyton Hewitt, who bought the rights to the trademark after Kroon had mistakenly let it lapse.