Thomas Johansson and Pieter Aldrich, share which occupation?
Pieter Aldrich Pieter ("Piet") Aldrich (born 7 September 1965) is a former professional tennis player from South Africa. A doubles specialist, he won 2 Grand Slam men's doubles titles (1 Australian Open and 1 US Open). Aldrich reached the World No. 1 doubles ranking in 1990.
Arne Ljungqvist Arne Ljungqvist (born 23 April 1931) is a Swedish medical researcher, sports personality and retired high jumper. Ljungqvist is an honorary member of the International Olympic Committee (IOC), chairman of IOC's Medical Commission, and vice chairman of the World Anti-Doping Agency (WADA).