Beth Tweddle poses at the ball for Britain's Olympic and Paralympic teams at Battersea Park in London, Britain, November 30, 2016. REUTERS/Hannah McKay 

Beth Tweddle poses at the ball for Britain's Olympic and Paralympic teams at Battersea Park in London, Britain, November 30, 2016. REUTERS/Hannah McKay 

Beth Tweddle poses at the ball for Britain's Olympic and Paralympic teams at Battersea Park in London, Britain, November 30, 2016. REUTERS/Hannah McKay 

Aliya Mustafina (C) of Russia celebrates winning a gold medal with silver medallist He Kexin (R) of China and bronze medallist Elizabeth Tweddle of Britain at the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain looks at her score at the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain competes in the women's asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Aliya Mustafina (C) of Russia celebrates winning a gold medal with silver medallist He Kexin (L) of China and bronze medallist Elizabeth Tweddle of Britain at the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Gold medallist Aliya Mustafina (R) of Russia shakes the hand of bronze medallist Elizabeth Tweddle of Britain at the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Aliya Mustafina (C) of Russia celebrates winning a gold medal with silver medallist He Kexin (R) of China and bronze medallist Elizabeth Tweddle of Britain at the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain celebrates winning a bronze medal in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS TPX IMAGES OF THE DAY)

Elizabeth Tweddle of Britain celebrates winning a bronze medal in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain celebrates with her bronze medal in the women's asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Aliya Mustafina (C) of Russia celebrates winning a gold medal with silver medallist He Kexin (L) of China and bronze medallist Elizabeth Tweddle of Britain at the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain celebrates winning a bronze medal in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain celebrates winning a bronze medal in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain competes in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain steps back after landing as she competes in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain competes in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS TPX IMAGES OF THE DAY)

Elizabeth Tweddle of Britain competes in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain competes in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS TPX IMAGES OF THE DAY)

Elizabeth Tweddle (C) of Britain hugs He Kexin of China as she celebrates winning a bronze medal in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain celebrates winning a bronze medal in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain celebrates winning a bronze medal in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle (L) of Britain hugs Gabrielle Douglas of the U.S. as she celebrates winning a bronze medal in the women's gymnastics asymmetric bars final in the North Greenwich Arena during the London 2012 Olympic Games August 6, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Catherine, Duchess of Cambridge, is seen with British gymnasts Rebecca Tunney
(C) and Elizabeth Tweddle as they attend the gymnastics finals in the North Greenwich Arena during the London 2012 Olympic Games August 5, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS ROYALS ENTERTAINMENT)

Britain's Elizabeth Tweddle waves to the crowd during the women's gymnastics team final in the North Greenwich Arena at the London 2012 Olympic Games July 31, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Britain's Elizabeth Tweddle performs her floor exercise during the women's gymnastics team final in the North Greenwich Arena at the London 2012 Olympic Games July 31, 2012. REUTERS/Adrees Latif (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Britain's Elizabeth Tweddle is seen during the women's gymnastics team final in the North Greenwich Arena at the London 2012 Olympic Games July 31, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Britain's Elizabeth Tweddle performs on the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Elizabeth Tweddle of Britain competes in the asymmetric bars during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

British gymnast Elizabeth Tweddle (2nd R) is embraced by a teammate after finishing a session of the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

British gymnasts stand together, from L-R, Rebecca Tunney, Jennifer Pinches, Hannah Whelan, Elizabeth Tweddle and Imogen Cairns embrace after finishing a session of the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Britain's Elizabeth Tweddle performs on the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS TPX IMAGES OF THE DAY)

Britain's Elizabeth Tweddle performs on the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS TPX IMAGES OF THE DAY)

Britain's Elizabeth Tweddle smiles after performing on the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Britain's Elizabeth Tweddle performs on the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Britain's Elizabeth Tweddle waves after performing on the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Britain's Elizabeth Tweddle performs on the uneven bars during the women's gymnastics qualification at the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT GYMNASTICS OLYMPICS)

Elizabeth Tweddle of Britain gestures after competing in the asymmetric bars as her team mates applaud during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain gestures after competing in the asymmetric bars during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain dismounts from the asymmetric bars during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain competes in the floor exercise during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain competes in the floor exercise during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain competes in the floor exercise during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain competes in the floor exercise during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain competes in the floor exercise during the women's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 29, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS TPX IMAGES OF THE DAY)

Team GB's Rebecca Tunney (L-R), Elizabeth Tweddle, Jennifer Pinches, Hannah Whelan and Imogen Cairns
attend a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Brian Snyder (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Great Britain attends a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Great Britain attends a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

The wristband of Elizabeth Tweddle of Great Britain is seen during a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Great Britain attends a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Great Britain attends a gymnastics training session at the North Greenwich Arena before the start of the London 2012 Olympic Games July 26, 2012. REUTERS/Mike Blake (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Elizabeth Tweddle of Britain performs on the uneven bars during the Fifth FIG Artistic Gymnastics Challenge Cup in the Aspire Academy at Doha March 28, 2012. REUTERS/Mohammed Dabbous (QATAR - Tags: SPORT GYMNASTICS) 

Daniel Purvis, Elizabeth Tweddle and Louis Smith of Britain pose with their medals at the Artistic Gymnastics World Championships in Rotterdam October 23, 2010. REUTERS/Dylan Martinez (NETHERLANDS - Tags: SPORT GYMNASTICS) 

Daniel Purvis, Elizabeth Tweddle and Louis Smith of Britain pose with their medals at the Artistic Gymnastics World Championships in Rotterdam October 23, 2010. REUTERS/Dylan Martinez (NETHERLANDS - Tags: SPORT GYMNASTICS) 

Elizabeth Tweddle of Britain shows her gold medal after the women's uneven bars finals at the Artistic Gymnastics World Championships in Rotterdam October 23, 2010. REUTERS/Jerry Lampen (NETHERLANDS - Tags: SPORT GYMNASTICS) 

Elizabeth Tweddle of Britain shows her gold medal after the women's uneven bars finals at the Artistic Gymnastics World Championships in Rotterdam October 23, 2010. REUTERS/Jerry Lampen (NETHERLANDS - Tags: SPORT GYMNASTICS) 

Elizabeth Tweddle of Britain looks at other competitors during the women's uneven bars finals at the Artistic Gymnastics World Championships in Rotterdam October 23, 2010. REUTERS/Dylan Martinez (NETHERLANDS - Tags: SPORT GYMNASTICS) 

Elizabeth Tweddle of Britain celebrates with her gold medal after winning the women's uneven bars finals at the Artistic Gymnastics World Championships in Rotterdam October 23, 2010. REUTERS/Dylan Martinez (NETHERLANDS - Tags: SPORT GYMNASTICS) 

Elizabeth Tweddle of Britain shows her gold medal after winning the women's uneven bars finals at the Artistic Gymnastics World Championships in Rotterdam October 23, 2010. REUTERS/Dylan Martinez (NETHERLANDS - Tags: SPORT GYMNASTICS)