Johan Kriek

Johan Kriek (born April 5, 1958) is a retired South African-American tennis player and founder of the Global Water Foundation, a non-profit organization dedicated to delivering clean water to the world's neediest communities. He won two Australian Open titles and reached the semifinals at the French Open and US Open, as well as the quarterfinals of Wimbledon. Kriek won 14 professional singles and eight doubles titles, reaching a career-high singles ranking of world No. 7. His most memorable wins include victories over Andre Agassi, Jimmy Connors, John McEnroe, Guillermo Vilas, Stefan Edberg, Michael Chang, Vitas Gerulaitis and Björn Borg.
He attended Afrikaanse Hoër Seunskool (Afrikaans High School for Boys, also known as Affies), a public school located in Pretoria.
Kriek became a naturalized American citizen in August 1982.