Japan's Misaki Matsutomo (R) and Ayaka Takahashi react after winning their match against compatriots Reika Kakiiwa and Miyuki Maeda during their women's doubles final match at the BWF World Superseries Japan open badminton championships in Tokyo June 15, 2014. REUTERS/Yuya Shino (JAPAN - Tags: SPORT BADMINTON) 

China's Zhao Yunlei (R) and her partner Wang Xiaoli kiss their trophy after winning their women's doubles final match against Japan's Miyuki Maeda and Reika Kakiiwa in the Uber Cup badminton championship in New Delhi May 24, 2014. REUTERS/Anindito Mukherjee (INDIA - Tags: SPORT BADMINTON) 

China's Zhao Yunlei (top) and her partner Wang Xiaoli celebrate after winning against Japan's Miyuki Maeda and Reika Kakiiwa in their women's doubles final match in the Uber Cup badminton championship in New Delhi May 24, 2014. REUTERS/Anindito Mukherjee (INDIA - Tags: SPORT BADMINTON) 

China's Zhao Yunlei (top) and her partner Wang Xiaoli play against Japan's Miyuki Maeda and Reika Kakiiwa during their women's doubles final match in the Uber Cup badminton championship in New Delhi May 24, 2014. REUTERS/Anindito Mukherjee (INDIA - Tags: SPORT BADMINTON) 

China's Zhao Yunlei (R) plays a shot as her partner Wang Xiaoli watches during their women's doubles final match against Japan's Miyuki Maeda and Reika Kakiiwa in the Uber Cup badminton championship in New Delhi May 24, 2014. REUTERS/Anindito Mukherjee (INDIA - Tags: SPORT BADMINTON) 

Japan's Reika Kakiiwa (L) and her partner Miyuki Maeda play against China's Zhao Yunlei and Wang Xiaoli during their women's doubles final match in the Uber Cup badminton championship in New Delhi May 24, 2014. REUTERS/Anindito Mukherjee (INDIA - Tags: SPORT BADMINTON) 

Japan's Miyuki Maeda (L) and Satoko Suetsuna play against China's Wang Xiaoli and Yu Yang during the women's doubles final match at the China Open World Super Series Premier badminton competition in Shanghai November 18, 2012. REUTERS/Aly Song (CHINA - Tags: SPORT BADMINTON) 

Hong Kong's Poon Lok Yan (L) and Tse Ying Suet play against Japan's Miyuki Maeda and Satoko Suetsuna during their women's doubles group play stage Group D badminton match at the London 2012 Olympic Games at the Wembley Arena July 31, 2012. The pair lost the match to Japan. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna (R) celebrate beating Hong Kong's Poon Lok Yan and Tse Ying Suet in their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 31, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna (L) celebrate as they walk past a score board after beating Hong Kong's Poon Lok Yan and Tse Ying Suet in their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 31, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda (back) and Satoko Suetsuna celebrate beating Hong Kong's Poon Lok Yan and Tse Ying Suet in their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 31, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna (L) celebrate beating Hong Kong's Poon Lok Yan and Tse Ying Suet in their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 31, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna (back) celebrate a point against Hong Kong's Poon Lok Yan and Tse Ying Suet in their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 31, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna (R) celebrate beating Hong Kong's Poon Lok Yan and Tse Ying Suet in their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 31, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna (L) celebrate beating Hong Kong's Poon Lok Yan and Tse Ying Suet in their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 31, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna (R) celebrate beating Hong Kong's Poon Lok Yan and Tse Ying Suet during their women's doubles group play stage Group D badminton match at the London 2012 Olympic Games at the Wembley Arena July 31, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna (back) play against Hong Kong's Poon Lok Yan and Tse Ying Suet during their women's doubles group play stage Group D badminton match at the London 2012 Olympic Games at the Wembley Arena July 31, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna (front) play against Hong Kong's Poon Lok Yan and Tse Ying Suet during their women's doubles group play stage Group D badminton match at the London 2012 Olympic Games at the Wembley Arena July 31, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna react during their women's doubles group play stage Group D badminton match against China's Tian Qing and Zhao Yunlei during the London 2012 Olympic Games at the Wembley Arena July 30, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna react during their women's doubles group play stage Group D badminton match against China's Tian Qing and Zhao Yunlei during the London 2012 Olympic Games at the Wembley Arena July 30, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna play against China's Tian Qing and Zhao Yunlei during their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 30, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna play against China's Tian Qing and Zhao Yunlei during their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 30, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Miyuki Maeda and Satoko Suetsuna celebrate after scoring a point against China's Tian Qing and Zhao Yunlei during their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 30, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

China's Tian Qing and Zhao Yunlei play against Japan's Miyuki Maeda and Satoko Suetsuna during their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 30, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

China's Tian Qing and Zhao Yunlei play against Japan's Miyuki Maeda and Satoko Suetsuna during their women's doubles group play stage Group D badminton match during the London 2012 Olympic Games at the Wembley Arena July 30, 2012. REUTERS/Bazuki Muhammad (BRITAIN - Tags: SPORT BADMINTON SPORT OLYMPICS)

Japan's Misaki Matsutomo prepares to hit a return in front of teammate Ayaka Takahashi during their women's doubles match against Japan's Satoko Suetsuna and Miyuki Maeda at the China Open badminton tournament in Shanghai November 24, 2011. REUTERS/Aly Song (CHINA - Tags: SPORT BADMINTON) 

Japan's Ayaka Takahashi prepares to hit a return behind teammate Misaki Matsutomo during their women's doubles match against Japan's Satoko Suetsuna and Miyuki Maeda at the China Open badminton tournament in Shanghai November 24, 2011. REUTERS/Aly Song (CHINA - Tags: SPORT BADMINTON) 

Japan's Satoko Suetsuna (L) reaches for a shot in front of teammate Miyuki Maeda during their women's doubles match against Japan's Misaki Matsutomo and Ayaka Takahashi at the China Open badminton tournament in Shanghai November 24, 2011. REUTERS/Aly Song (CHINA - Tags: SPORT BADMINTON) 

China's Yu Yang (front) and Wang Xiaoli react after defeating Japan's Miyuki Maeda and Satoko Suetsuna during their women's doubles semi-final match at the Japan Super Series 2010 badminton championships in Tokyo September 25, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: SPORT BADMINTON) 

Japan's Miyuki Maeda (R) and Satoko Suetsuna celebrate their winning against China's Zhang Dan and Zhang Zhibo (not in the picture) during their women's double match at the Japan Super Series 2010 badminton championships in Tokyo September 24, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: SPORT BADMINTON) 

Japan's Miyuki Maeda (R) and Satoko Suetsuna return a shot to China's Zhang Dan and Zhang Zhibo (not in the picture) during their women's doubles match at the Japan Super Series 2010 badminton championships in Tokyo September 24, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: SPORT BADMINTON) 

Maeda Miyuki of Japan returns a shot to Toby Ng and Grace Gao of Canada during their mixed doubles match at the 2010 Badminton World Championships at the Coubertin stadium in Paris August 24, 2010. REUTERS/Charles Platiau (FRANCE - Tags: SPORT BADMINTON) 

Maeda Miyuki (L) and Noriyasu Hirata (R) of Japan return a shot to Toby Ng and Grace Gao of Canada during their mixed doubles match at the 2010 Badminton World Championships at the Coubertin stadium in Paris August 24, 2010. REUTERS/Charles Platiau (FRANCE - Tags: SPORT BADMINTON) 

Maeda Miyuki (front) and Noriyasu Hirata (rear) of Japan return a shot to Toby Ng and Grace Gao of Canada during their mixed doubles match at the 2010 Badminton World Championships at the Coubertin stadium in Paris August 24, 2010. REUTERS/Charles Platiau (FRANCE - Tags: SPORT BADMINTON) 

Lee Hyo-jung (R) and Kim Min-jung of South Korea hit a return to Miyuki Maeda and Satoko Suetsuna of Japan during their women's doubles semi-final match at the Djarum Indonesia Open Super Series badminton tournament in Jakarta June 26, 2010. REUTERS/Crack Palinggi (INDONESIA) 

Japan's Satoko Suetsuna (top) watches her doubles teammate Miyuki Maeda hit a return to South Korea's Kim Min-jun and Lee Hyo-jung during their semi-final match in the Uber Cup badminton championship in Kuala Lumpur May 13, 2010. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: SPORT BADMINTON) 

South Korea's Kim Min-jun (L) watches her doubles teammate Lee Hyo-jung hit a return to Japan's Miyuki Maeda and Satoko Suetsuna during their semi-final match in the Uber Cup badminton championship in Kuala Lumpur May 13, 2010. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: SPORT BADMINTON) 

South Korea's Kim Min-jun (lower L) and Lee Hyo-jung (lower R) are congratulated by Japan's Miyuki Maeda (top L) and Satoko Suetsuna after winning their doubles semi-final match in the Uber Cup badminton championship in Kuala Lumpur May 13, 2010. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: SPORT BADMINTON) 

South Korea's Kim Min-jun (L) and Lee Hyo-jung celebrate after winning their doubles semi-final match against Japan's Miyuki Maeda and Satoko Suetsuna in the Uber Cup badminton championship in Kuala Lumpur May 13, 2010. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: SPORT BADMINTON) 

Japan's Miyuki Maeda (L) and Noriyasu Hirata competes during their mixed doubles semi-final match against China's Yu Yang and He Hanbin at the Victor Korea Open Badminton Super Series in Seoul January 16, 2010. REUTERS/Jo Yong-Hak (SOUTH KOREA - Tags: SPORT BADMINTON) 

China's Yu Yang (front) returns a shot as her team mate He Hanbin watches during their mixed doubles semi-final match against Japan's Miyuki Maeda and Noriyasu Hirata at the Victor Korea Open Badminton Super Series in Seoul January 16, 2010. REUTERS/Jo Yong-Hak (SOUTH KOREA - Tags: SPORT BADMINTON) 

Miyuki Maeda (R) and Noriyasu Hirata of Japan compete during their mixed doubles quarter-final match against Thailand's Sudket Prapakamol and Saralee Thoungthongkam at the Victor Korea Open Badminton Super Series in Seoul January 15, 2010. REUTERS/Choi Bu-Seok (SOUTH KOREA - Tags: SPORT BADMINTON) 

Miyuki Maeda (front) and Noriyasu Hirata of Japan compete during their mixed doubles quarter-final match against Thailand's Sudket Prapakamol and Saralee Thoungthongkam at the Victor Korea Open Badminton Super Series in Seoul January 15, 2010. REUTERS/Choi Bu-Seok (SOUTH KOREA - Tags: SPORT BADMINTON) 

Miyuki Maeda (front) and Noriyasu Hirata of Japan compete during their mixed doubles quarter-final match against Thailand's Sudket Prapakamol and Saralee Thoungthongkam at the Victor Korea Open Badminton Super Series in Seoul January 15, 2010. REUTERS/Choi Bu-Seok (SOUTH KOREA - Tags: SPORT BADMINTON) 

Japan's Miyuki Maeda and Satoko Suetsuna (top) compete against China's Wang Xiaoli and Ma Jin during their women's doubles final match at the Japan Open badminton tournament in Tokyo September 27, 2009. REUTERS/Toru Hanai (JAPAN SPORT BADMINTON) 

China's Wang Xiaoli (top) and Ma Jin compete against Japan's Miyuki Maeda and Satoko Suetsuna during their women's doubles final match at the Japan Open badminton tournament in Tokyo September 27, 2009.
REUTERS/Toru Hanai (JAPAN SPORT BADMINTON) 

China's Wang Xiaoli (L) and Ma Jin smile with their gold medals after defeating Japan's Miyuki Maeda and Satoko Suetsuna at their women's doubles final match at the Japan Open badminton tournament in Tokyo September 27, 2009.
REUTERS/Toru Hanai (JAPAN SPORT BADMINTON) 

China's Yu Yang returns a shot behind teammate Du Jing (L) during their quarter-finals women's doubles match against Japan's Miyuki Maeda and Satoko Seutsuna at the World Badminton Championships in Hyderabad August 14, 2009. REUTERS/Arko Datta (INDIA SPORT BADMINTON) 

China's Yu Yang returns a shot behind teammate Du Jing (L) during their quarter-finals women's doubles match against Japan's Miyuki Maeda and Satoko Seutsuna at the World Badminton Championships in Hyderabad August 14, 2009. REUTERS/Arko Datta (INDIA SPORT BADMINTON) 

Japan's Satoko Suetsuna and teammate Miyuki Maeda (front) reach out for the shuttle during their women's doubles match against Malaysia's Chin Eei Hui and Wong Pei Tty during the World Badminton Championships in Hyderabad August 13, 2009. REUTERS/Arko Datta (INDIA) 

Japan's Satoko Suetsuna and teammate Miyuki Maeda (R) celebrate a point during their women's doubles match against Malaysia's Chin Eei Hui and Wong Pei Tty during the World Badminton Championships in Hyderabad August 13, 2009. REUTERS/Arko Datta (INDIA SPORT BADMINTON) 

Japan's Miyuki Maeda (L) returns a shot as as her teammate Satoko Suetsuna watches during their women's doubles match against Malaysia's Chin Eei Hui and Wong Pei Tty during the World Badminton Championships in Hyderabad August 13, 2009. REUTERS/Arko Datta (INDIA SPORT BADMINTON) 

Japan's Satoko Suetsuna returns a shot as as teammate Miyuki Maeda (L) looks on during their women's doubles match against Malaysia's Chin Eei Hui and Wong Pei Tty during the World Badminton Championships in Hyderabad August 13, 2009. REUTERS/Arko Datta (INDIA SPORT BADMINTON) 

Satoko Suetsuna (bottom) and Miyuki Maeda of Japan compete against Cheng Shu and Zhao Yunlei of China during their women's doubles semifinal match at the Japan Open badminton tournament in Tokyo September 20, 2008. REUTERS/Toru Hanai (JAPAN) 

Wei Yili (top L) and Zhang Yawen (top R) of China celebrate winning their women's doubles bronze medal badminton match against Miyuki Maeda (bottom R) and Satoko Suetsuna (bottom L) of Japan at the Beijing 2008 Olympic Games August 15, 2008. REUTERS/Beawiharta (CHINA) 

Lee Hyo-jung (L) and Lee Kyung-won of South Korea celebrate beating Satoko Suetsuna and Miyuki Maeda of Japan in their women's doubles semi-final badminton match at the Beijing 2008 Olympic Games, August 13, 2008. REUTERS/Beawiharta (CHINA) 

Lee Hyo-jung (L) and Lee Kyung-won of South Korea celebrate beating Satoko Suetsuna and Miyuki Maeda of Japan in their women's doubles semi-final badminton match at the Beijing 2008 Olympic Games, August 13, 2008. REUTERS/Beawiharta (CHINA) 

Satoko Suetsuna (R) and Miyuki Maeda of Japan take a break during their women's doubles semifinal badminton match against South Korea at the Beijing 2008 Olympic Games August 13, 2008. REUTERS/Beawiharta (CHINA) 

Satoko Suetsuna (L) and Miyuki Maeda of Japan take a break during their women's doubles semifinal badminton match against South Korea at the Beijing 2008 Olympic Games August 13, 2008. REUTERS/Beawiharta (CHINA) 

Satoko Suetsuna (R) and Miyuki Maeda of Japan leave after losing their women's doubles semifinal badminton match against South Korea at the Beijing 2008 Olympic Games August 13, 2008. REUTERS/Issei Kato (CHINA)