Badminton-World championship quarter-final results

Aug 12 (Reuters) - World championship badminton quarter-final results from Wembley Arena, London on Friday(prefix denotes seeding)

                                                                   

Men's singles
1-Lee Chong Wei (Malaysia) beat Kevin Cordon (Guatemala) 21-7
21-13
2-Lin Dan (China) beat 11-Sho Sasaki (Japan) 21-14 21-16
6-Chen Jin (China) beat Hans-Kristian Vittinghus (Denmark)
21-17 21-13
3-Peter Gade (Denmark) beat 7-Tien Minh Nguyen (Vietnam) 17-21
21-19 21-13

                                                                   
Women's singles
  3-Wang Xin (China) beat 6-Saina Nehwal (India) 21-15 21-10
  7-Cheng Shao Chieh (Taiwan) beat 1-Wang Shixian (China) 21-16
21-17
9-Juliane Schenk (Germany) beat 5-Tine Baun (Denmark) 21-9
21-11
2-Wang Yihan (China) beat Pi Hongyan (France) 21-14 21-16