Olympic Champion Masato Uchishiba of Japan (L) fights with Leandro Cunha of Brazil in the under 66 kg men's preliminaries during the World Judo Championships in Rotterdam August 26, 2009. REUTERS/Michael Kooren (NETHERLANDS SPORT JUDO) 

Japan's Masato Uchishiba (front) challenges France's Benjamin Dardelet in their under 66kg judo final at the Paris International tournament February 7, 2009. Uchishiba won the fight. REUTERS/Charles Platiau (FRANCE) 

Japan's Masato Uchishiba (R) challenges France's Benjamin Dardelet in their under 66kg judo final at the Paris International Tournament February 7, 2009. Uchishiba won the fight. REUTERS/Charles Platiau (FRANCE) 

Masato Uchishiba of Japan stands on the podium during the -66kg judo men's medal ceremony at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Issei Kato (CHINA) 

Masato Uchishiba of Japan gestures after winning the -66kg judo men's final at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Issei Kato (CHINA) 

Masato Uchishiba of Japan gestures after winning the -66kg judo men's final at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Issei Kato (CHINA)

Masato Uchishiba of Japan kisses his gold medal after winning the -66kg judo men's final at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Issei Kato (CHINA)

(From L to R) Silver medallist Benjamin Darbelet of France, gold medallist Masato Uchishiba of Japan and bronze medallists Yordanis Arencibia of Cuba and Pak Chol-min of North Korea pose after the men's -66kg judo final at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Kim Kyung-Hoon (CHINA)

Masato Uchishiba of Japan holds his gold medal after winning the -66kg judo men's final at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Kim Kyung-Hoon (CHINA) 

Masato Uchishiba of Japan holds his gold medal after winning the -66kg judo men's final at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Kim Kyung-Hoon (CHINA)

Masato Uchishiba of Japan fights with Benjamin Darbelet of France during their men's -66kg judo final match at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Issei Kato (CHINA) 

Masato Uchishiba of Japan holds his gold medal after winning the -66kg judo men's final at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Kim Kyung-Hoon (CHINA) 

Masato Uchishiba of Japan prepares to fight with Benjamin Darbelet of France on their men's -66kg judo final match at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Issei Kato (CHINA) 

Masato Uchishiba of Japan (blue) fights with Yordanis Arencibia of Cuba during their men's -66kg finals of table judo match at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Issei Kato (CHINA)

Masato Uchishiba of Japan (blue) fights with Yordanis Arencibia of Cuba during their men's -66kg finals of table judo match at the Beijing 2008 Olympic Games, August 10, 2008. REUTERS/Kim Kyung-Hoon (CHINA) 

Japan's Masato Uchishiba (R) competes against South Korea's Kim Joo-Jin at the Paris International tournament February 9, 2008. REUTERS/Charles Platiau (FRANCE) 

South Korea's Kim Joo-Jin celebrates his victory over Japan's Masato Uchishiba at the Paris International tournament February 9, 2008. REUTERS/Charles Platiau (FRANCE) 

Japan's Masato Uchishiba (Bottom) competes against France's David Larose during the Paris International judo tournament February 9, 2008. REUTERS/Charles Platiau (FRANCE) 

South Korea's Kim Joo-Jin (R) battles with Japan's Masato Uchishiba in their under-66kg judo final at the Paris International tournament February 9, 2008. Kim won the fight. REUTERS/Charles Platiau (FRANCE) 

South Korea's Kim Joo-Jin reacts after defeating Japan's Masato Uchishiba in their under-66kg judo final at the Paris International tournament February 9, 2008. REUTERS/Charles Platiau (FRANCE) 

Brazil's Joao Derly celebrates after winning the under-66kg category gold medal at the World Judo Championships in Cairo September 10, 2005. Derly won his country's first ever world title to claim gold in the men's under-66kg division, defeating Olympic champion Masato Uchishiba of Japan in the final. REUTERS/Ali Jarekji AJ/KI 

Japanese fans cheer Japan's Masato Uchishiba during his men's under-66kg category bout against Darbelet Benjamin of France at the World Judo Championships in Cairo September 10, 2005. REUTERS/Ali Jarekji AJ/KI 

Darbelet Benjamin (in blue) of France and Japan's Masato Uchishiba compete during their men's under-66 category bout at the World Judo Championships in Cairo, September 10, 2005. REUTERS/Ali Jarekji AJ/KI 

Darbelet Benjamin (in blue) of France and Japan's Masato Uchishiba compete during their men's under-66 category bout at the World Judo Championships in Cairo, September 10, 2005. REUTERS/Ali Jarekji PP05090157 AJ/KI 

Brazil's Joao Derly Junior (top) and Japan's Masato Uchishiba compete in a -66kg class bout at the World Judo Championships in Cairo September 8, 2005. REUTERS/Ali Jarekji AJ/DY 

Brazil's Joao Derly Junior (L) and Japan's Masato Uchishiba compete in a -66kg class bout at the World Judo Championships in Cairo September 8, 2005. REUTERS/Ali Jarekji AJ/DY 

Japan's Masato Uchishiba celebrates his gold medal victory over Slovakia's Jozef Krnac after the men's half-lightweight (under 66kg) final in the Athens 2004 Olympic Summer Games, August 15, 2004. 

Japan's Olympic champion Masato Uchishiba (2nd L), silver medallist Slovakia's Jozef Krnac (L), bronze medallist Bulgaria's Georgi Georgiev (2nd R) and Cuba's Yordanis Arencibia (R) display their medals during the award ceremony in the men's judo half-lightweight (under 66kg) competition at the Athens 2004 Olympic Summer Games, August 15, 2004. 

Japan's Masato Uchishiba displays his gold medal during the awards ceremony in the men's judo half-lightweight (under 66kg) competition in the Athens 2004 Olympic Summer Games August 15, 2004. 

Japans Uchishiba displays his gold medal during the ceremony in the mens judo half lightweight competition in the Athens 2004 Olympic Games. Japan's Masato Uchishiba displays his gold medal during the awards ceremony in the men's judo half-lightweight (under 66kg) competition in the Athens 2004 Olympic Games August 15, 2004. REUTERS/Issei Kato 

Athletes in the mens judo half lightweight competition display their medals at the Athens 2004 Olympic Games. Japan's Olympic champion Masato Uchishiba (2nd L), silver medallist Slovakia's Jozef Krnac (L), bronze medallist Bulgaria's Georgi Georgiev (2nd R) and Cuba's Yordanis Arencibia (R) display their medals during the award ceremony in the men's judo half-lightweight (under 66kg) competition at the Athens 2004 Olympic Games, August 15, 2004. REUTERS/Issei Kato 

Japans Uchishiba displays his gold medal for the mens judo half lightweight competition in the Athens 2004 Olympic Games. Japan's Masato Uchishiba (R) displays his gold medal during the awards ceremony in the men's judo half-lightweight (under 66kg) competition in the Athens 2004 Olympic Games August 15, 2004. Bulgaria's bronze medal winner Georgi Georgiev (L) stands near Uchishiba. REUTERS/Ruben Sprich 

Japans Uchishiba grapples with Slovakias Krnac during the mens judo half lightweight final in the Athens 2004 Olympic Games. Japan's Masato Uchishiba (L) grapples with Slovakia's Josef Krnac during the men's judo half light-weight (under 66kg) final in the Athens 2004 Olympic Games, August 15, 2004. REUTERS/Issei Kato 

Japans Uchishiba displays his gold medal during the ceremony in the mens judo half lightweight competition in the Athens 2004 Olympic Games. Japan's Masato Uchishiba displays his gold medal during the awards ceremony in the men's judo half-lightweight (under 66kg) competition in the Athens 2004 Olympic Games August 15, 2004. REUTERS/Issei Kato 

Japans Uchishiba grapples with Slovakias Krnac during the mens judo half lightweight final in the Athens 2004 Olympic Games. Japan's Masato Uchishiba (top) grapples with Slovakia's Josef Krnac during the men's judo half light-weight (under 66kg) final in the Athens 2004 Olympic Games, August 15, 2004. Uchishiba defeated Krnac, earning the gold medal. REUTERS/Ruben Sprich 

Japans Uchishiba grapples with Slovakias Krnac during the mens judo half lightweight final in the Athens 2004 Olympic Games. Japan's Masato Uchishiba (L) grapples with Slovakia's Josef Krnac during the men's judo half light-weight (under 66kg) final in the Athens 2004 Olympic Games, August 15, 2004. REUTERS/Issei Kato 

Japans Uchishiba celebrates his gold medal victory over Slovakias Krnac after the mens half lightweight final in the Athens 2004 Olympic Games. Japan's Masato Uchishiba celebrates his gold medal victory over Slovakia's Jozef Krnac after the men's half-lightweight (under 66kg) final in the Athens 2004 Olympic Games, August 15, 2004. REUTERS/Issei Kato 

Japans Uchishiba celebrates his gold medal victory over Slovakias Krnac after the mens halflightweight final in the Athens 2004 Olympic Games. Japan's Masato Uchishiba celebrates his gold medal victory over Slovakia's Jozef Krnac after the men's half-lightweight (under 66kg) final in the Athens 2004 Olympic Games, August 15, 2004. REUTERS/Issei Kato 

Japanese Uchishiba struggles with Lencina of Argentina during their judo mens half-lightweight preliminary round in the Athens 2004 Olympic Games. Japan's Masato Uchishiba (top) struggles with Argentina's Jorge Lencina (bottom) during their judo men's half-lightweight (under 66kg) preliminary round match in the Athens 2004 Olympic Games August 15, 2004. Uchishiba beat Lencina. REUTERS/Issei Kato 

Masato Uchishiba of Japan (in white) fights Dashdavaa Gantumur of Mongolia in the 66 kg category during the Asian judo Championship in Almaty, May 16, 2004. REUTERS/Shamil Zhumatov SZH/AS/CRB 

Masato Uchishiba of Japan (white) throws Murat Kalikulov of Uzbekistan in the 66 kg category during the Asian judo Championship in Almaty, May 16, 2004. REUTERS/Shamil Zhumatov SZH/TW