SAO PAULO - Top-seeded Tommy Haas defeated qualifier Potito Starace 7-6 (2), 6-3 to reach the clay-court Brazil Open quarter-finals Wednesday.
The 12th-ranked Haas served well throughout the match at the Ibirapuera arena, allowing only one break point to the 152nd-ranked Italian.
Both players held serve until the first-set tiebreak, when Haas stepped up his game to easily clinch the set. The German then broke Starace's serve two times in a row late in the second set to close out the match in 1 hour, 30 minutes.
Hass will next play Argentina's Horacio Zeballos, who defeated countryman Guido Pella 6-3, 6-4.
Second-seeded Nicolas Almagro of Spain, a three-time winner in Brazil, was upset by Federico Delbonis of Argentina 6-3, 3-6, 2-6.