COSTA DO SAUIPE, Brazil -- Top seeds Rainer Schuettler and Sjeng Schalken advanced to the quarterfinals of the Brasil Open on Thursday.

Schuettler beat Paul Goldstein 6-0, 6-1, while Schalken, a quarterfinalist at last week's U.S. Open, beat Gregory Carraz 7-5, 6-4.

Third-seeded Gustavo Kuerten, the defending champion, beat Werner Eschauer 6-2, 6-1.

In other matches in the ATP hardcourt tournament on Thursday, No. 5 Vincent Spadea advanced when Hermes Gamonal twisted his ankle and retired with Spadea leading 6-1, 2-6, 3-1; Ricardo Mello beat No. 6 Juan Ignacio Chela 2-6, 6-2, 6-4; Ramon Delgado eliminated No. 7 Flavio Saretta 2-6, 6-3, 6-4; eighth-seeded Kenneth Carlsen defeated Wesley Moodie 7-5, 6-7 (5), 6-3; and Gaston Etlis downed Eric Taino 7-5, 4-6, 7-6 (5).