Are both Tom Okker and Kim Clijsters Belgian tennis players?
Kim Clijsters Kim Antonie Lode Clijsters (] ; born 8 June 1983) is a Belgian former professional tennis player. Clijsters is a former world No. 1 in both singles and doubles.
Arnold van Calker Oltman Jan ("Arnold") van Calker (born 16 September 1976, Gasselternijveenschemond) is a Dutch bobsledder, who has competed since 1999. His best World Cup finish was second in the four-man event Königssee, Germany in January 2009.