Varazdin, Croatia (My Sportsbook) - Croatia put the finishing touches Sunday on a 5-0 sweep of visiting Ecuador in a best-of-five Davis Cup first-round matchup.

In a pair of dead rubbers on Day 3, Antonio Veic vaulted past Julio-Cesar Campozano 6-4, 7-6 (7-4) and Ivan Dodig drubbed Ivan Endara 6-1, 6-3.

The Croats will face Serbia or the United States in the quarterfinals in July.

Croatia officially eliminated Ecuador on Saturday when its towering doubles pairing of Marin Cilic and Ivo Karlovic handled an Ecuadorian brothers tandem of Nicolas Lapentti and Giovanni Lapentti, 7-6 (7-3), 6-3, 7-5.

On Friday in Varazdin, the 6-foot-10 Karlovic got the hosts going by sneaking past Nicolas Lapentti 6-2, 5-7, 6-7 (2-7), 6-3, 6-4 and the rising 6-foot-6 world No. 9 Cilic made it 2-0 Croatia by peppering Giovanni Lapentti 6-4, 6-3, 6-3 on the indoor hardcourt at Gradska Sportska Dvorana.

Croatia, which is captained by Goran Prpic, captured its lone Davis Cup title in 2005. Ecuador, which was in the World Group for the first time in nine years, was led by Raul Viver.