Wickmayer ousts Krajicek; Vaidisova, Bondarenko sisters advance

BIRMINGHAM, England -- Belgian 18-year-old Yanina Wickmayer earned her second straight victory over a seeded player, defeating No. 8 Michaella Krajicek 6-3, 6-4 on Thursday at the DFS Classic, to reach her first WTA Tour quarterfinal.

Two weeks after playing in her first Grand Slam and drawing the praise of recently retired compatriot Justine Henin, Wickmayer reached the last eight in only her fourth event on the main women's tour.

She next will face a partisan crowd when she meets Melanie South, a British wild-card entry who beat Aiko Nakamura 2-6, 6-4, 6-4 to become the first Brit to reach the DFS quarterfinals in 16 years.

In other matches Thursday, No. 3 Nicole Vaidisova wasted a 4-1 lead in the first set and had to rally for a 6-7 (5), 6-2, 6-4 victory over Ekaterina Marakova.

The other remaining seeds are the Bondarenko sisters from Ukraine, both of whom had to come from behind to reach the quarterfinals and set up a sibling showdown in the semis if they both win one more match.

No. 5 Alona Bondarenko had to recover from a set and a break down to beat Sunitha Rao 3-6, 7-5, 6-1, while her younger sister, Kateryna, the 12th seed, beat Melinda Czink 4-6, 6-4, 7-5.