Bulgaria's Jordan Jovtchev (L) is kissed by a coach after competing in the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Bulgaria's Jordan Jovtchev stumbles on his landing as he competes in the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Bulgaria's Jordan Jovtchev is seen with his coach at the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Bulgaria's Jordan Jovtchev competes in the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Bulgaria's Jordan Jovtchev competes in the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Bulgaria's Jordan Jovtchev competes in the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Bulgaria's Jordan Jovtchev competes in the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Bulgaria's Jordan Jovtchev competes in the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Bulgaria's Jordan Jovtchev competes in the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Bulgaria's Jordan Jovtchev competes in the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Brazil's Arthur Nabarrete Zanetti (R) hugs Bulgaria's Jordan Jovtchev as he celebrates winning a gold medal in the men's gymnastics rings final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria gestures as he receives applause from the crowd after competing in the rings during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria gestures as he receives applause from the crowd after competing in the rings during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria competes on the rings during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria gestures as he receives applause from the crowd after competing in the rings during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria gestures as he receives applause from the crowd after competing in the rings during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria gestures as he receives applause from the crowd after competing in the rings during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria waves to the crowd after competing in the rings during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria is helped to the rings before competing during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria competes on the rings during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria warms up on the rings during the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Jordan Jovtchev of Bulgaria performs in the men's rings final and wins silver at the Gymnastics World Championships at the O2 Arena in London October 17, 2009. REUTERS/Jerry Lampen (BRITAIN SPORT GYMNASTICS) 

Jordan Jovtchev of Bulgaria performs in the men's rings final and wins silver at the Gymnastics World Championships at the O2 Arena in London October 17, 2009. REUTERS/Jerry Lampen (BRITAIN SPORT GYMNASTICS) 

Jordan Jovtchev of Bulgaria performs in the men's rings final and wins silver at the Gymnastics World Championships at the O2 Arena in London October 17, 2009. REUTERS/Jerry Lampen (BRITAIN SPORT GYMNASTICS IMAGES OF THE DAY) 

Jordan Jovtchev of Bulgaria celebrates after taking second place in the men's rings final at the Gymnastics World Championships at the O2 Arena in London October 17, 2009. REUTERS/Jerry Lampen (BRITAIN SPORT GYMNASTICS) 

Bulgarian gymnast Jordan Jovtchev takes a rest during a training session in Sofia July 24, 2008. Jovtchev has said he will quit after his fifth Olympics in Beijing. Or will he? For every statement fuelling speculation that Jovtchev will soldier on, the 35-year-old rings specialist seems to make one that quashes it. REUTERS/Stringer (BULGARIA) 

Bulgarian gymnast Jordan Jovtchev practises during a training session in Sofia July 24, 2008. Jovtchev has said he will quit after his fifth Olympics in Beijing. Or will he? For every statement fuelling speculation that Jovtchev will soldier on, the 35-year-old rings specialist seems to make one that quashes it. REUTERS/Stringer (BULGARIA) 

Jordan Jovtchev of Bulgaria looks on as he performs on the rings at the final event at the 28th European Men's Artistic Gymnastics Championships in Lausanne May 11, 2008. REUTERS/Denis Balibouse (SWITZERLAND) 

Yuri Van Gelder of the Netherlands (C), Jordan Jovtchev (L) of Bulgaria and Danny Rodrigues of France celebrate with their medals after the rings competition at the final event of the 28th European Men's Artistic Gymnastics Championships in Lausanne May 11, 2008. Van Gelder won ahead of Jovtchev and Rodrigues. REUTERS/ Denis Balibouse (SWITZERLAND) 

Yuri Van Gelder of the Netherlands performs on the rings during the final event at the 28th European Men's Artistic Gymnastics Championships in Lausanne May 11, 2008. Van Gelder won ahead of Jordan Jovtchev of Bulgaria and Danny Rodrigues of France. REUTERS/Pascal Lauener (SWITZERLAND) 

Jordan Jovtchev of Bulgaria performs on the parallel bars during the qualification round at the 28th European Men's Artistic Gymnastics Championships in Lausanne May 8, 2008. REUTERS/Pascal Lauener (SWITZERLAND) 

Jordan Jovtchev of Bulgaria performs on the rings during the qualification round at the 28th European Mens Artistic Gymnastics Championships in Lausanne May 8, 2008. REUTERS/Denis Balibouse (SWITZERLAND) 

Jordan Jovtchev of Bulgaria performs on the rings during the qualification round at the 28th European Men's Artistic Gymnastics Championships in Lausanne May 8, 2008. REUTERS/Pascal Lauener (SWITZERLAND) 

Jordan Jovtchev of Bulgaria competes on the high bars during the all-around team competition at the 40th World Artistic Gymnastics Championships in Stuttgart September 3, 2007. REUTERS/Ina Fassbender (GERMANY) 

Jordan Jovtchev of Bulgaria competes on the pommel horse during the all-around team competition at the 40th World Artistic Gymnastics Championships in Stuttgart September 3, 2007. REUTERS/Stefan Wermuth (GERMANY) 

Jordan Jovtchev of Bulgaria competes on the high bars during the all-around team competition at the 40th World Artistic Gymnastics Championships in Stuttgart September 3, 2007. REUTERS/Ina Fassbender (GERMANY) 

Jordan Jovtchev of Bulgaria compets on the parallel bars during the all-around team competition at the 40th World Artistic Gymnastics Championships in Stuttgart September 3, 2007. REUTERS/Wolfgang Rattay (GERMANY) 

Jordan Jovtchev of Bulgaria competes on the parallel bars during the all-around team competition at the 40th World Artistic Gymnastics Championships in Stuttgart September 3, 2007. REUTERS/Wolfgang Rattay (GERMANY) 

Jordan Jovtchev of Bulgaria competes on the rings during the men's qualifying round at the 2nd European Artistic Gymnastics individual Championships in Amsterdam April 27, 2007. REUTERS/Toussaint Kluiters (NETHERLANDS) 

Yuri Van Gelder of the Netherlands is congratulated by his coach at the end of his exercise on the rings to win the bronze medal at the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. Chen Yibing of China took the gold medal followed by Jordan Jovtchev of Bulgaria and Van Gelder. REUTERS/Max Rossi (DENMARK) 

Yuri Van Gelder of the Netherlands competes on the rings to win the bronze medal at the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. Chen Yibing of China took the gold medal followed by Jordan Jovtchev of Bulgaria and Van Gelder. REUTERS/Max Rossi (DENMARK) 

Yuri Van Gelder of the Netherlands competes on the rings to win the bronze medal at the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. Chen Yibing of China took the gold medal followed by Jordan Jovtchev of Bulgaria and Van Gelder. REUTERS/Max Rossi (DENMARK) 

Chen Yibing of China is congratulated by his coach after his exercise on the rings at the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. Chen took the gold medal followed by Jordan Jovtchev of Bulgaria and Yuri Van Gelder of the Netherlands. REUTERS/Max Rossi (DENMARK) 

Chen Yibing of China competes on the rings to win the gold medal at the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. Chen Yibing of China took the gold medal followed by Jordan Jovtchev of Bulgaria and Yuri Van Gelder of the Netherlands. REUTERS/Max Rossi (DENMARK) 

Medal winners in the rings event pose during the awards ceremony at the Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. China's Chen Yibing (C) won the gold medal, Bulgaria's Jordan Jovtchev (L) won the silver, and Yuri van Gelder from the Netherlands won the bronze. sREUTERS/Wolfgang Rattay (DENMARK) 

Chen Yibing of China celebrates on the podium after his gold medal win during the rings final at the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. Chen took the gold medal followed by Jordan Jovtchev of Bulgaria and Yuri Van Gelder of the Netherlands. REUTERS/Max Rossi (DENMARK) 

Chen Yibing of China celebrates on the podium after his gold medal win during the ring final at the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. Yibing of China took the gold medal followed by Jordan Jovtchev of Bulgaria and Yuri Van Gelder of the Netherlands. REUTERS/Max Rossi (DENMARK) 

Yuri Van Gelder of the Netherlands celebrates on the podium after winning the bronze medal during the ring final at the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. Chen Yibing of China took the gold medal followed by Jordan Jovtchev of Bulgaria and Van Gelder. REUTERS/Max Rossi (DENMARK) 

Yuri Van Gelder of the Netherlands holds the bronze medal he won in the men's individual apparatus final at the rings during the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. Chen Yibing of China took the gold medal followed by Jordan Jovtchev of Bulgaria. REUTERS/Wolfgang Rattay (DENMARK) 

Yuri Van Gelder of The Netherlands holds his bronze medal he won in the men's individual apparatus final at the rings during the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. Chen Yibing of China took the gold medal followed by Jordan Jovtchev of Bulgaria and Yuri Van Gelder of the Netherlands. REUTERS/Wolfgang Rattay (DENMARK) 

Yuri van Gelder from the Netherlands competes on the rings during the apparatus finals at the 39th Artistic Gymnastics World Championships in Aarhus, Denmark, October 20, 2006. China's Chen Yibing won the gold medal followed by Bulgaria's Jordan Jovtchev and van Gelder from the Netherlands. REUTERS/Wolfgang Rattay (DENMARK) 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Bulgarian gymnast Jordan Jovtchev competes in the rings during the Men's apparatus final in the 27th European Artistic Gymnastics championships in Volos, Greece May 7, 2006. Jovtchev won the silver medal with a total of 16.275 points. 

Bulgarian gymnast Jordan Jovtchev, who won a silver medal in rings at the Athen's Olympics games, gives autographs shortly after his arrival at Sofia's airport August 25, 2004. Jovtchev's appeal against the men's rings result has been rejected by the government body of gymnastics (FIG), the athlete told Reuters on Tuesday. REUTERS/Oleg Popov OP/SM 

Bulgaria's Jordan Jovtchev performs in a gymnastics exhibition at the Athens 2004 Olympic Games August 24, 2004.REUTERS/Kim Kyung-Hoon WS/SV/AA 

Yuri Chechi of Italy celebrates his bronze medal in the rings event at the gymnastics competition at the Athens 2004 Olympic Summer Games August 22, 2004. [Dimosthenis Tampakos of Greece took gold and Jordan Jovtchev of Bulgaria took the silver.] 

Jordan Jovtchev of Bulgaria (L) celebrates his silver medal in the rings event at the gymnastics competition at the Athens 2004 Olympic Summer Games August 22, 2004. [Dimosthenis Tampakos of Greece took gold and Yuri Chechi of Italy took bronze.] 

Dimosthenis Tampakos of Greece (C) celebrates his gold medal with silver medallist Jordan Jovtchev of Bulgaria (L) and bronze medallist Yuri Chechi of Italy, after their rings event at the gynmastics competition at the Athens 2004 Olympic Summer Games, August 22, 2004. 

Yuri Chechi of Italy performs on the rings during the gymnastics competition at the Athens 2004 Olympic Summer Games August 22, 2004. [Dimossthenis Tampakos of Greece took the gold medal ahead of Jordan Jovtchev of Bulgaria with silver, and Chechi with bronze.] 

Yuri Chechi of Italy celebrates his bronze medal in the rings event at the gymnastics competition at the Athens 2004 Olympic Games August 22, 2004. Dimosthenis Tampakos of Greece took gold and Jordan Jovtchev of Bulgaria took the silver. REUTERS/Sergio Moraes SM/AA 

Jordan Jovtchev of Bulgaria (L) celebrates his silver medal in the rings event at the gymnastics competition at the Athens 2004 Olympic Games August 22, 2004. Dimosthenis Tampakos of Greece took gold and Yuri Chechi of Italy took bronze. REUTERS/Sergio Moraes SM/AA