Seventh-seeded Albert Montanes of Spain lost to Filippo Volandri of Italy in the first round of the Brazil Open on Monday.
Volandri needed 65 minutes to defeat the 51st-ranked Montanes in Sao Paulo, converting four of his seven break points to advance to the second round in Sao Paulo.
Earlier, wild card Javier Marti of Spain defeated 2009 semifinalist Frederico Gil of Portugal 6-2, 6-4, while Brazil's Ricardo Mello beat Pere Riba of Spain 6-4, 6-2 in the late match.
Jeremy Chardy, Paul Capdeville, Igor Andreev and Ruben Ramirez Hidalgo qualified for the main draw.
South America's biggest city is hosting the event for the first time after 11 editions in the northeastern city of Costa do Sauipe. The tournament is now being played indoors because of the rainy weather in Sao Paulo this time of the year.