Are Jan Kodeš and Nenad Zimonjić both tennis players?
Jan Kodeš Jan Kodeš (born 1 March 1946) is a right-handed Czech former tennis player who won three Grand Slam singles events in the early 1970s.
John-Laffnie de Jager John-Laffnie de Jager (born 17 March 1973) is a South African former tour professional tennis player. A doubles specialist, de Jager reached the semi-finals for three different grand slam tournaments three times in three different years partnering three different fellow South African players. de Jager is the current non-playing captain of the South Africa Davis Cup team.