Johannes Martinus ("Jan") Siemerink is a retired tennis player from the Netherlands. The former Dutch Davis Cup captain reached a career-high ATP ranking of 14.

Yevgeny Aleksandrovich Kafelnikov is a Russian former world No. 1 tennis player. He won two Grand Slam singles titles; the 1996 French Open and the 1999 Australian Open, and a gold medal at the 2000 Sydney Olympics. He also won four Grand Slam doubles titles, and is the most recent man to have won both the men's singles and doubles titles at the same Grand Slam tournament. In 2019, Kafelnikov was inducted into the International Tennis Hall of Fame.