Rio de Janeiro - Fifth-seeded Nicolas Almagro has made a shock 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.
Results from the second day of the WTA and ATP Rio Open on Tuesday (x denotes seeding):
Women's singles:
First round:
Lourdes Domnguez (ESP) bt Francesca Schiavone (ITA) 6-4, 6-4
Klara Zakopalova (CZE x1) bt Mariana Duque (COL) 6-4, 6-4
Dinah Pfizenmaier (GER) bt Barbora Zhlavov Strcov (CZE) 2-6, 6-4, 6-3
Chanelle Scheepers (RSA) bt Tmea Babos (HUN) 2-6, 6-3, 6-2
Men's singles:
First round:
Oleksandr Dolgopolov Jr. (UKR) bt Nicolas Almagro (ESP x5) 2-6, 6-3, 6-0
Albert Ramos (ESP) bt Leonardo Mayer (ARG) 6-2, 6-0
Joo Sousa (POR) bt Marcel Granollers (ESP x6) 2-6, 6-3, 7-5
Pablo Andujar (ESP x8) bt Julian Reister (GER) 6-4, 6-3