RIO DE JANEIRO (AP) -- Fifth-seeded Nicolas Almagro made a surprising exit from the first round of the Rio Open on Tuesday, losing 2-6, 6-3, 6-0 to Alexandr Dolgopolov of Ukraine.

The Spaniard has won 12 ATP tournaments -- all on clay, and six on the annual Latin American swing.

No. 4 Tommy Robredo of Spain had better luck, defeating countryman Pablo Carreno Busta 7-6 (5), 6-3. Eighth-seeded Pablo Andujar of Spain advanced against Julian Reister of Germany 6-4, 6-3. No. 6 Marcel Granollers of Spain was another upset victim, falling 2-6, 6-3, 7-5 to Joao Sousa of Portugal.

In the combined ATP-WTA event, top-seeded Klara Zakopalova of the Czech Republic won her first-round match, beating Colombia's Mariana Duque-Marino 6-4, 6-4. Second-seeded Francesca Schiavone of Italy was ousted, losing 6-4, 6-4 to Spain's Lourdes Dominguez Lino. No. 7 Barbora Zahlavova Strycova of the Czech Republic went out against Germany's Dinah Pfizenmaier 2-6, 6-4, 6-3.

Top-seeded Rafael Nadal of Spain was due to face countryman Daniel Gimeno-Traver in a late match. No. 2 David Ferrer of Spain was also to play late against Jeremy Chardy of France.

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