Who is older, Bob Bryan or Mariaan de Swardt?
Mariaan de Swardt Mariaan de Swardt (born 18 March 1971) is a former tennis player from South Africa, who played as a professional from 1988 to 2001. She twice represented her native country at the Summer Olympics, in 1992 and 1996, and was a member of the South African Fed Cup Team in 1992 and 1994–1997. In 2006, de Swardt became a U.S. citizen.
Robert Verbeek Robert Verbeek (born 26 July 1961) is a Dutch former soccer player and subsequently a manager. Verbeek is the younger brother of former Australia manager Pim Verbeek. As a player, he featured for Sparta Rotterdam, where he retired at the age of 31.