Linz, Austria (SportsNetwork.com) - Second-seeded two-time champion Ana Ivanovic, third-seeded Australian Open runner-up Dominika Cibulkova and fifth seed Sabine Lisicki exited the draw at the Generali Ladies Linz tennis event on Wednesday.
The second-seeded Ivanovic was scheduled to meet American qualifier Madison Brengle in a second-round affair, but the former world No. 1 from Serbia pulled out, citing a left hip injury, thus giving the 24-year-old Brengle a walkover into Friday's quarterfinals.
The recent Tokyo titlist Ivanovic was the Linz champion in 2008 and 2010 and last year's runner-up here to German Angelique Kerber.
Meanwhile, Cibulkova and last year's Wimbledon runner-up Lisicki suffered opening-round upsets, as German qualifier Anna-Lena Friedsam grounded Cibulkova 2-6, 6-3, 6-4 and Italian Karin Knapp sacked Lisicki 7-5, 2-6, 7-6 (7-1) on Day 3.
In second-round play on Wednesday, Italian Camila Giorgi dismissed Tunisian qualifier Ons Jabeur 6-3, 6-2 and New Zealand's Marina Erakovic clobbered Czech Klara Koukalova 6-0, 6-2 at TipsArena Linz.
The 2014 Linz titlist will earn $43,000.