Vienna - Fifth-seeded Radek Stepanek of the Czech Republic has outlasted Lukas Lacko of Slovakia 7-6 (4), 5-7, 7-6 (5) to reach his second quarter-final of the season at the Erste Bank Open on Wednesday.
Stepanek saved two set points while serving at 5-4 down in the opening set.
He missed his first match point at 5-4 in the final set before closing out the victory with his 15th ace.
Also, eighth-seeded Lukas Rosol of the Czech Republic served 10 aces while beating Mirza Basic of Bosnia-Hercegovina 6-3, 7-5 to reach his third quarterfinal of the year.
In first-round play, Lukasz Kubot of Poland defeated Florian Mayer of Germany 7-6 (1), 6-4.
The 74th-ranked Kubot, who came back from 3-0 down in the second set, next plays third-seeded Fabio Fognini of Italy.
Results on the third day of the Austrian Open on Wednesday (x denotes seeding):
Luks Rosol (CZE x8) bt Mirza Basic (BIH) 6-3, 7-5
Radek Stepanek (CZE x5) bt Lukas Lacko (SVK) 7-6 (7/4), 5-7, 7-6 (7/5)
Lukasz Kubot (POL) bt Florian Mayer (GER) 7-6 (7/1), 6-4