Japan's Erika Araki, Maiko Kano and Ai Otomo (L-R) celebrate winning their women's bronze medal volleyball match against South Korea at Earls Court during the London 2012 Olympic Games August 11, 2012. REUTERS/Ivan Alvarado (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL TPX IMAGES OF THE DAY)

Japan's Erika Araki (rear) spikes against South Korea's Yang Hyo-Jin during their women's bronze medal volleyball match at Earls Court during the London 2012 Olympic Games August 11, 2012. REUTERS/Toru Hanai (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

South Korea's Kim Yeon-Koung (L) misses the return as her team mate Yang Hyo-Jin (R) watches past Japan's Erika Araki (2nd R) during their women's bronze medal volleyball match at Earls Court during the London 2012 Olympic Games August 11, 2012. REUTERS/Ivan Alvarado (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

South Korea's Kim Yeon-Koung (L) spikes the ball against Japan's Saori Sakoda and Erika Araki (R) during their women's bronze medal volleyball match at Earls Court during the London 2012 Olympic Games August 11, 2012. REUTERS/Ivan Alvarado (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Brazil's Fernanda Rodrigues (L) spikes the ball against Japan's Erika Araki and Yukiko Ebata (R) during their women's semi-final volleyball match at Earls Court during the London 2012 Olympic Games August 9, 2012. REUTERS/Olivia Harris (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Japan's Erika Araki (L) falls as Brazil's players celebrates a point during their women's semi-final volleyball match at Earls Court during the London 2012 Olympic Games August 9, 2012. REUTERS/Ivan Alvarado (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Japan's Saori Kimura (L) and Erika Araki celebrate a point against China during their women's quarterfinal volleyball match at Earls Court during the London 2012 Olympic Games August 7, 2012. REUTERS/Ivan Alvarado (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Japan's captain Erika Araki, Ai Otomo, Saori Kimuna, Yukiko Ebata and Yoshie Takeshita (L-R) stand in a line after losing winning their women's Group A volleyball match against Italy at the London 2012 Olympic Games at Earls Court July 30, 2012. REUTERS/Ivan Alvarado (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Italy's Lucia Bosetti spikes the ball as Japan's Risa Shinnabe and captain Erika Araki (L-R) try to block the shot during their women's Group A volleyball match at the London 2012 Olympic Games at Earls Court July 30, 2012. REUTERS/Ivan Alvarado (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Algeria's Zohra Bensalem defends against Japan's Yoshie Takeshita, captain Erika Araki and Mai Yamaguchi (L-R) during their women's Group A volleyball match at the London 2012 Olympic Games at Earls Court in London July 28, 2012. REUTERS/Ivan Alvarado (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Japan's captain Erika Araki defends against Algeria's Sehryne Hennaoui during their women's Group A volleyball match at the London 2012 Olympic Games at Earls Court in London July 28, 2012. REUTERS/Ivan Alvarado (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Japan's Erika Araki (11) and teammates celebrate after defeating the U.S. at their the third place match at the FIVB Women's Volleyball World Championship in Tokyo November 14, 2010. REUTERS/Issei Kato (JAPAN - Tags: SPORT)

Japan's Erika Araki (11) and teammates celebrate after defeating the U.S. at their the third place match at the FIVB Women's Volleyball World Championship in Tokyo November 14, 2010. REUTERS/Issei Kato (JAPAN - Tags: SPORT)

Japan's Erika Araki (C) and teammates celebrate after defeating the U.S. at their the third place match at the FIVB Women's Volleyball World Championship in Tokyo November 14, 2010. REUTERS/Issei Kato (JAPAN - Tags: SPORT)

Japan's Erika Araki (L) spikes the ball against Costa Rica's Paola Vargas Ramirez (front R) and Karen Cope during their first round match at the FIVB Women's Volleyball World Championship in Tokyo November 2, 2010. REUTERS/Yuriko Nakao(JAPAN - Tags: SPORT VOLLEYBALL)

Algeria's Safia Boukhima (R) spikes the ball against Japan's Megumi Kurihara (1) and Erika Araki (11) during their first round match at the FIVB Women's Volleyball World Championship in Tokyo October 31, 2010.
REUTERS/Toru Hanai (JAPAN - Tags: SPORT VOLLEYBALL)

Japan's Erika Araki spikes the ball against Brazil's Claudino Fabiana during their final round match of the 2009 FIVB World Grand Prix in Tokyo August 23, 2009. REUTERS/Yuriko Nakao (JAPAN SPORT VOLLEYBALL)

Japan's Erika Araki dives for the ball against China's Wang Yimei (L) and Xue Ming during their final round match of the 2009 FIVB World Grand Prix in Tokyo August 22, 2009. REUTERS/Yuriko Nakao (JAPAN SPORT VOLLEYBALL)

Japan's Erika Araki reacts after losing a point against China during their final round match of the 2009 FIVB World Grand Prix in Tokyo August 22, 2009. REUTERS/Yuriko Nakao (JAPAN SPORT VOLLEYBALL)

Japan's Erika Araki (C) spikes the ball against China's Wang Yimei (L) and Xue Ming during their final round match of the 2009 FIVB World Grand Prix in Tokyo August 22, 2009. REUTERS/Yuriko Nakao (JAPAN SPORT VOLLEYBALL)

Erika Araki of Japan reacts during their women's quarter-final volleyball match against Brazil at the Beijing 2008 Olympic Games, August 19, 2008. REUTERS/Stefano Rellandini (CHINA)

Saori Kimura (L) and Erika Araki of Japan eye the ball during their women's quarter-final volleyball match against Brazil at the Beijing 2008 Olympic Games, August 19, 2008. REUTERS/Stefano Rellandini (CHINA)

Paula Pequeno (back) of Brazil spikes against Erika Araki of Japan during their women's quarter-final volleyball match at the Beijing 2008 Olympic Games, August 19, 2008. REUTERS/Sergio Moraes (CHINA)

Fabiana Claudino (R) of Brazil spikes against Megumi Kurihara (L) and Erika Araki of Japan during their women's quarter-final volleyball match at the Beijing 2008 Olympic Games, August 19, 2008. REUTERS/Sergio Moraes (CHINA)

Erika Araki of Japan prepares to block during their women's quarter-final volleyball match against Brazil at the Beijing 2008 Olympic Games, August 19, 2008. REUTERS/Sergio Moraes (CHINA)

Erika Araki (L) of Japan eyes the ball watched by Wei Qiuyue of China during their women's preliminary Pool A volleyball match at the Beijing 2008 Olympic Games August 17, 2008. REUTERS/Alexander Demianchuk (CHINA)

Erika Araki (L) and Yoshie Takeshita of Japan celebrate a point during their women's preliminary Pool A volleyball match against China at the Beijing 2008 Olympic Games August 17, 2008. REUTERS/Alexander Demianchuk (CHINA)

Yoshie Takeshita, Erika Araki and Saori Kimura (LtoR) of Japan react after losing to China in their women's preliminary Pool A volleyball match at the Beijing 2008 Olympic Games August 17, 2008. REUTERS/Issei Kato (CHINA)

Erika Araki and Saori Kimura and Miyuki Takahashi (LtoR) of Japan react after losing to China in their women's preliminary Pool A volleyball match at the Beijing 2008 Olympic Games August 17, 2008. REUTERS/Issei Kato (CHINA)

Erika Araki (R) of Japan spikes against Rachel Sanchez of Cuba during their women's preliminary pool A volleyball match at the Beijing 2008 Olympic Games, August 15, 2008. REUTERS/Alexander Demianchuk (CHINA)

Erika Araki of Japan blocks the ball during their women's preliminary pool A volleyball match against Cuba at the Beijing 2008 Olympic Games, August 15, 2008. REUTERS/Alexander Demianchuk (CHINA)

Japan's Erika Araki celebrates after defeatingt Poland in the women's preliminary pool A volleyball match at the Beijing 2008 Olympic Games, August 13, 2008. REUTERS/Marcelo Del Pozo (CHINA)

Japan's Erika Araki (R) spikes against Maria Liktoras of Poland during the women's preliminary pool A volleyball match at the Beijing 2008 Olympic Games, August 13, 2008. REUTERS/Marcelo Del Pozo (CHINA)

Japan's Erika Araki (R) spikes against Maria Liktoras (L) and Milena Sadurek of Poland during the women's preliminary pool A volleyball match at the Beijing 2008 Olympic Games, August 13, 2008. REUTERS/Marcelo Del Pozo (CHINA)

Japan's Megumi Kurihara, Yoshie Takeshita and Erika Araki (LtoR) celebrate a point during their women's preliminary pool A volleyball match against Venezuela at the Beijing 2008 Olympic Games, August 11, 2008. REUTERS/Alexander Demianchuk (CHINA)

Erika Araki (R) of Japan spikes against Aleoscar Blanco of Venezuela during their women's preliminary pool A volleyball match at the Beijing 2008 Olympic Games, August 11, 2008. REUTERS/Alexander Demianchuk (CHINA)

Yuko Sano and Erika Araki (R) of Japan react during their women's preliminary pool A volleyball match against Venezuela at the Beijing 2008 Olympic Games, August 11, 2008. REUTERS/Alexander Demianchuk (CHINA)

Kim Willoughby (12) of the U.S. plays a shot as Erika Araki of Japan tries to block during their women's preliminary pool A volleyball match at the Beijing 2008 Olympic Games, August 9, 2008. REUTERS/Zainal Abd Halim (CHINA)

Erika Araki (L) of Japan plays a shot as Kim Willoughby (R) of the U.S. tries to block during their women's preliminary pool A volleyball match at the Beijing 2008 Olympic Games, August 9, 2008. REUTERS/Alexander Demianchuk (CHINA)

Erika Araki (R) of Japan tries to block a shot by Danielle Scott-Arruda of the U.S. as Kim Willoughby watches during their Women's Preliminary Pool A volleyball match at the Beijing 2008 Olympic Games, August 9, 2008. REUTERS/Zainal Abd Halim (CHINA)

Thailand's Wilavan Apinyapong (C) spikes the ball against Japan's Erika Araki during their 2008 World Women Olympic Volleyball Qualification Tournament in Tokyo May 24, 2008. REUTERS/Kim Kyung-Hoon (JAPAN)

Japan's Erika Araki and Saori Kimura (R) reacts after defeating South Korea during the 2008 World Women Olympic Volleyball Qualification tournament in Tokyo May 23, 2008. The slogan on the placard is the part of "Congratulation, Qualified to Beijing Olympic Games". REUTERS/Kim Kyung-Hoon (JAPAN)

South Korea's Kim Min-ji spikes the ball against Japan's Miyuki Takahashi (R) and Erika Araki during the 2008 World Women's Olympic Volleyball Qualification Tournament in Tokyo May 23, 2008. REUTERS/Kim Kyung-Hoon (JAPAN)

South Korea's Bae Yoo-na spikes the ball against Japan's Miyuki Takahashi (L) and Erika Araki during the 2008 Women's World Olympic Volleyball Qualification Tournament in Tokyo May 23, 2008. REUTERS/Kim Kyung-Hoon (JAPAN)

Dominica's Bethania De La Cruz de Pena (C) spikes the ball against Japan's Erika Araki (L) and Miyuki Takahashi at the 2008 World Women Olympic Volleyball Qualification Tournament in Tokyo May 21, 2008. REUTERS/Kim Kyung-Hoon (JAPAN)

Japan's Erika Araki spikes the ball against Brazil's Jaqueline Carvalho (L) and Fabiana Claudino at the second set of the fourth phase match of FIVB Volleyball World Cup 2007 in Nagoya, central Japan November 15, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Japan's Erika Araki (C) and Miyuki Takahashi jump to block the spike from Heather Bown of the U.S as their teammate Saori Kimura looks on during the second set of their fourth phase match at the FIVB Volleyball World Cup 2007 in Nagoya, central Japan, November 15, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Cuba's Yumilka Ruiz Luaces spikes the ball against Japan's Erika Araki (L) and Yoshie Takeshita during the third set of a fourth phase match at the FIVB Volleyball World Cup 2007 in Nagoya, central Japan November 14, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Japan's Erika Araki spikes the ball against Cuba's Rachel Sanchez Perez (C) and Daimi Ramirez Echevarria during the fourth set of a fourth phase match at the FIVB Volleyball World Cup 2007 in Nagoya, central Japan November 14, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Japan's Yoshie Takeshita (L) and Erika Araki follow the ball from Kenya during the third phase match of FIVB Volleyball World Cup 2007 in Sapporo, northern Japan November 11, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Japan's Erika Araki (back) spikes the ball against Kenya's Catherine Wanjiru (L) and Brackcides Khdambi during the third phase match of FIVB Volleyball World Cup 2007 in Sapporo, northern Japan November 11, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Katarzyna Skowronska-Dolata (R) spikes the ball against Japan's Saori Kimura (L) and Erika Araki during the third phase match of the FIVB Volleyball World Cup 2007 in Sapporo, northern Japan, November 10, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Japan's Erika Araki (R) and Poland's Eleonora Dziekiewicz try to push the ball over the net during the third phase match of the FIVB Volleyball World Cup 2007 in Sapporo, northern Japan, November 10, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Japan's Erika Araki (C) spikes the ball against Peru's Mirtha Uribe (R) and Patricia Soto (L) during their third phase match of the FIVB Volleyball World Cup 2007 in Sapporo, northern Japan, November 9, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Peru's Leyla Chihuan (R) spikes the ball against Japan's Saori Kimura and Erika Araki (L) during the third phase match of the FIVB Volleyball World Cup 2007 in Sapporo, northern Japan, November 9, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Peru's Leyla Chihuan (R) spikes the ball against Japan's Saori Kimura and Erika Araki (L) during the third phase match of the FIVB Volleyball World Cup 2007 in Sapporo, northern Japan, November 9, 2007. REUTERS/Kim Kyung-Hoon (JAPAN)

Serbia's Jelena Nikolic (R) spikes the ball against Japan's Erika Araki during the first phase match of FIVB Volleyball World Cup 2007 in Tokyo November 4, 2007. REUTERS/Yuriko Nakao (JAPAN)

Japan's Sashiko Sugiyama Erika Araki jumps to block a ball by South Korea during the first phase match of FIVB Volleyball World Cup 2007 in Tokyo November 3, 2007. REUTERS/Yuriko Nakao (JAPAN)

Japan's Erika Araki (L) and Megumi Kurihara jump to block the ball against South Korea during the first phase match of FIVB Volleyball World Cup 2007 in Tokyo November 3, 2007. REUTERS/Yuriko Nakao (JAPAN)

Japan's Saori Kimura (L) and Erika Araki (R) attempt to block a spike by Dominican Republic's Bethania De La Cruz de Pena during the first phase match of FIVB Volleyball World Cup 2007 in Tokyo November 2, 2007. REUTERS/Yuriko Nakao (JAPAN)