KITZBUEHEL, Austria (AP) Maximo Gonzalez of Argentina and David Goffin of Belgium reached the Kitzbuehel Cup semifinals on a rain-soaked Thursday, while top-seeded Philipp Kohlschreiber of Germany lost.
Gonzalez upset third-seeded Lukas Rosol of the Czech Republic 6-3, 4-6, 6-3, while Goffin downed Paolo Lorenzi of Italy 6-2, 6-1. The two remaining quarterfinals 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.
In second-round play, Lorenzi defeated last week's Gstaad champion, Pablo Andujar of Spain, 6-2, 6-0, and Goffin 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.
Defending champion Marcel Granollers of Spain, seeded second, defeated Diego Schwartzman of Argentina 6-3, 6-4 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 quarterfinal.
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.