Australian Peter Luczak has been defeated in the first round of the Brasil Open in Costa do Sauipe on Tuesday.
Luczak took the first set against Juan Ignacio Chela in a tiebreak, but was unable to keep up his good form as the Argentine ran out a 6-7 (4-7) 6-3 6-4 victor.
Top seed Juan Carlos Ferrero defeated Eduardo Schwank of Argentina 7-6 (7-4) 6-3 to progress to a second round clash with Nicolas Massu.
Massu, from Chile, defeated qualifier Rogerio Dutra Da Silva of Brazil 6-4 3-6 6-4.
Third seed Thomaz Bellucci was a straight sets 6-2 7-5 winner over fellow Brazilian Thiago Alves, a wildcard, and will meet Daniel Gimeno-Traver in the next round.
Russia's Igor Andreev, the fourth seed, was a 6-2 6-2 victor over Potito Starace of Italy and sixth seed Pablo Cuevas of Uruguay defeated Filippo Volandri 6-4 6-3.
Fifth seed Victor Hanescu claimed a 7-6 (7-5) 6-4 win over Joao Souza, but seventh seed Horacio Zeballos will take no further part in the tournament after retiring with a hip problem while trailing Marcel Granollers of Spain 7-5 3-0.
Other first-round winners today were Lukasz Kubot of Poland, Fabio Fognini of Italy, Portugal's Frederico Gil, qualifier Rui Machado and wildcard Ricardo Hocevar.
Meanwhile, fourth seed Tommy Haas got through a tight first-round encounter at the SAP Open in San Jose.
Germany's Haas claimed a 6-4 7-6 (7-3) win over wildcard Devin Britton in one hour 13 minutes.
Sixth seed Philipp Kohlschreiber of Germany prevailed in three sets over American Rajeev Ram, winning 6-7 (7-9) 6-1 6-3.
Sam Querrey, the seventh seed, saw off Russian Teimuraz Gabashvili 6-3 6-2 in just under 55 minutes.
Eighth seed Jeremy Chardy of France was beaten 6-3 6-1 by Bjorn Phau of Germany and Robby Ginepri lost 6-7 (5-7) 6-2 6-3 to qualifier Ricardas Berankis of Lithuania.
Benjamin Becker of Germany beat qualifier Tim Smyczek of America 6-4 6-2 and Michael Russell of America beat South Korea's Im Kyu-Tae 7-6 (8-6) 6-1.
Im was a late replacement for Mardy Fish, who withdrew with a left knee injury.