Kitzbuehel - Defending champion Marcel Granollers of Spain has defeated Diego Schwartzman of Argentina 6-3, 6-4 to reach the quarterfinals of the Kitzbuehel Cup on Thursday, while top-seeded Philipp Kohlschreiber of Germany lost.
Granollers, seeded second, used all five break chances against Schwartzman to set up a quarterfinal against Dominic Thiem, who beat Jiri Vesely of the Czech Republic 6-3, 7-6 (3).
The 20-year-old Austrian, the youngest player in the top 50, came back from a break down twice in the second set to reach his third career quarter-final.
David Goffin of Belgium won the last five games to complete a 6-3, 7-5 win over Kohlschreiber.
Goffin held on to an early break to win the opening set, and saved three set points against the German after dropping 5-2 down in the second.
The match was postponed from Wednesday due to rain.
Including three challenger events he won, Goffin enjoyed his 17th straight win without dropping a set.
The fourth-seeded Andreas Seppi of Italy plays Juan Monaco of Argentina in the last eight.
Seppi's second-round opponent Pere Riba of Spain withdrew beforehand with a viral infection, while Monaco eliminated seventh-seeded Jarkko Nieminen of Finland 6-3, 6-4 in a match that was suspended for three hours in the second set because of rain.
Meanwhile, Maximo Gonzalez of Argentin reached the semi-final after he upset third-seeded Lukas Rosol of the Czech Republic 6-3, 4-6, 6-3, while Goffin went onto down Paolo Lorenzi of Italy 6-2, 6-1 in his second match of the day.
The two remaining quarter-finals were postponed until Friday.
The 104th-ranked Gonzalez lost the second set from 4-2 up but broke Rosol twice in the final set.
He will next play Goffin, who hasn't dropped a set in 18 straight wins since Wimbledon, including three challenger events he won.
Results from the fourth day of the ATP Kitzbuehel Cup on Thursday (x denotes seeded player):
David Goffin (BEL) bt Paolo Lorenzi (ITA) 6-2, 6-1
Maximo Gonzalez (ARG) bt Luks Rosol (CZE x3) 6-3, 4-6, 6-3
David Goffin (BEL) bt Philipp Kohlschreiber (GER x1) 6-3, 7-5
Paolo Lorenzi (ITA) bt Pablo Andjar (ESP) 6-2, 6-0
Juan Monaco (ARG) bt Jarkko Nieminen (FIN x7) 6-3, 6-4
Andreas Seppi (ITA x4) bt Pere Riba (ESP) - walkover
Dominic Thiem (AUT x5) bt Jir Vesel (CZE) 6-3, 7-6 (7/3)
Marcel Granollers (ESP) bt Diego Schwartzman (ARG) 6-3, 6-4