Azarenka reaches QFs; Ivanovic exits Luxembourg

Top seed Victoria Azarenka was round winner, while former world No. 1 Ana Ivanovic was an upset victim Thursday at the $220,000 Luxembourg Open.

The Belarusian star Azarenka leveled helpless Italian Alberta Brianti 6-0, 6-1 in 67 minutes on the indoor hardcourts at CK Sportcenter Kockelscheuer.

Azarenka's quarterfinal opponent on Friday will be veteran Czech left-hander Iveta Benesova.

The fifth-seeded Serbian Ivanovic, meanwhile, succumbed to British qualifier Anne Keothavong 6-3, 6-1 in 74 minutes on Day 4. Ivanovic captured this event back in 2007.

In other second-round action, Dutch qualifier Bibiane Schoofs landed in her first-ever WTA quarterfinal with a 1-6, 6-1, 7-5 victory over Canadian Rebecca Marino, Latvian Anastasija Sevastova stifled Romanian Simona Halep 6-2, 6-2, and Czech lucky-loser Lucie Hradecka humbled Romanian qualifier Alexandra Cadantu 6-3, 6-4.

Friday's other quarters will pit sixth-seeded German Julia Goerges against Sevastova, Hradecka versus Romanian Monica Niculescu and Keothavong against the 23-year-old upstart Schoofs. Goerges lost to Italian Roberta Vinci in last year's Luxembourg finale.

The 2011 Luxembourg titlist will collect $37,000.