Another Slovenian, qualifier Blaz Kavcic, rallied to upset seventh seed Florian Mayer of Germany 6-7 (5/7), 6-0, 7-5. Kavcic won a decisive break at 6-5 in the third set for a match point.
“This was a really tough match,” Kavcic said.
Kavcic next faces Gael Monfils of France, who defeated Croatian wild-card Mate Pavic 7-5, 6-2. Monfils struggled at times in the first set, allowing Pavic a set point a 5-4.
Spain’s Albert Montanes faced a tougher challenge in the opening set before defeating Serbia’s Dusan Lajovic 7-6 (7/3), 6-1. Lajovic paid the price for wasting a set point in the first set.
Eighth seed Carlos Berlocq of Argentina defeated Croatia’s Josko Topic 6-0, 6-1, while Serbia’s Viktor Troicki beat Antonio Veic of Croatia 7-6 (8/6), 6-1.
In the late match, eighth seed Horacio Zeballos of Argentina defeated Croatia’s Borna Coric 6-7 (5/7), 6-4, 6-0.
Earlier, Austria’s Andreas Haider-Maurer defeated Jiri Vesely of the Czech Republic 6-4, 6-4 and Slovenia’s Aljaz Bedene eliminated Dutchman Boy Westerhof 6-2, 6-2.