Czech Republic eliminated last year's Davis Cup finalists Argentina at Ostrava on Sunday in a thrilling quarter-final. Radek Stepanek overcame Juan Monaco in straight sets in the final rubber, clinching a spot for the Czechs in the World Group semi-final. It was a disappointment for the Argentines who earlier saw the balance tip briefly in their favour. The Czech Republic last reached the Davis Cup semi-finals in 1996. The Czechs will travel in September to face Croatia.