Answer
Five men from Chile have ranked in the top 20 before Garín. These include Fernando González, Nicolás Massú, Marcelo Ríos, Jaime Fillol, and Iván Ljubičić. González and Massú are the most successful, having both won the men's doubles title at the 2004 Summer Olympics. Ríos is the highest-ranked Chilean male singles player, having reached number one in the world in 1998.