Pyeongchang 2018 Winter Olympics - Pyeongchang - South Korea – February 14, 2018. Xue Chen of China returns the ball during an event promoting the Snow Volleyball hosted by the International Volleyball Federation (FIVB) and European Volleyball Confederation (CEV). REUTERS/Kim Hong-Ji

Badminton - Yonex All England Open Badminton Championships - Barclaycard Arena, Birmingham - 10/3/16
China's Xue Song (top) in action with China's Chen Long during the round of 16
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Badminton - Yonex All England Open Badminton Championships - Barclaycard Arena, Birmingham - 10/3/16
China's Xue Song (L) leaves the court with China's Chen Long after victory in the round of 16
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Badminton - Yonex All England Open Badminton Championships - Barclaycard Arena, Birmingham - 10/3/16
China's Xue Song (top) shakes hands with China's Chen Long after victory in the round of 16
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Brazil's Juliana celebrates with a photographer after winning their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL TPX IMAGES OF THE DAY)

Brazil's Juliana celebrates with spectators after winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Juliana celebrates with spectators after winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (L) and Juliana celebrate winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa and Juliana (L) celebrate winning at the end of their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (L) and Juliana celebrate winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (L) and Juliana celebrate winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa celebrates with spectators after winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Juliana celebrates with a photographer after winning their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Juliana celebrates with a member of team Brazil after winning their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Juliana celebrates with a member of team Brazil after winning their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Juliana celebrates with spectators after winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (R) and Juliana celebrate with spectators after winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (R) and Juliana celebrate winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (L) and Juliana celebrate winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (L) and Juliana celebrate winning in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Juliana celebrates winning their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (R) and Juliana celebrate a point in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Juliana (R) spikes the ball past China's Xue Chen in their women's beach volleyball bronze medal match at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (R) and Juliana talk in between points in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (L) blocks a spike by Brazil's Juliana in their women's beach volleyball bronze medal match at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (R) and team mate Zhang Xi run for the ball in their women's beach volleyball bronze medal match against Brazil's Larissa and Juliana at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (R) and Juliana talk in between points in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (L) blocks a spike by Brazil's Juliana in their women's beach volleyball bronze medal match at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen is seen during her women's beach volleyball bronze medal match at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Juliana is seen during her women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa reacts after losing a point in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (L) and team mate Zhang Xi celebrate a point in their women's beach volleyball bronze medal match against Brazil's Larissa and Juliana at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (L) blocks a spike by Brazil's Juliana in their women's beach volleyball bronze medal match at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (R) hits the ball against Brazil's Juliana in their women's beach volleyball bronze medal match at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (L) blocks a spike by Brazil's Juliana in their women's beach volleyball bronze medal match at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (R) blocks a spike by Brazil's Juliana in their women's beach volleyball bronze medal match at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Brazil's Larissa (R) and Juliana talk in between points in their women's beach volleyball bronze medal match against China's Xue Chen and Zhang Xi at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Dominic Ebenbichler (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (R) blocks a spike by Brazil's Juliana in their women's beach volleyball bronze medal match at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (L) and team mate Zhang Xi celebrate a point in their women's beach volleyball bronze medal match against Brazil's Larissa and Juliana at the Horse Guards Parade during the London 2012 Olympic Games August 8, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: SPORT OLYMPICS SPORT VOLLEYBALL)

Misty May-Treanor (C) of the U.S. hits the ball past her team mate Kerri Walsh Jennings during their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

A general view shows the Horse Guards Parade during the women's beach volleyball semifinal match between China's Xue Chen and Zhang Xi and Misty May-Treanor and Kerri Walsh Jennings of the U.S. during the London 2012 Olympic Games August 7, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Misty May-Treanor of the U.S. celebrates with fans winning their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL TPX IMAGES OF THE DAY)

Misty May-Treanor of the U.S. celebrates with fans winning their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen and Zhang Xi return to position during their women's beach volleyball semifinal match against Misty May-Treanor and Kerri Walsh Jennings of the U.S. at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Misty May-Treanor of the U.S. celebrates with fans winning their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Misty May-Treanor of the U.S. celebrates winning their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Dancers perform during abreak in the women's beach volleyball semifinal match between China's Xue Chen and Zhang Xi and Misty May-Treanor and Kerri Walsh Jennings of the U.S. at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Kerri Walsh Jennings (R) of the U.S. spikes the ball against China's Xue Chen during their women's beach volleyball semifinal match at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (R) and Zhang Xi fall while trying to save a point during their women's beach volleyball semifinal match against Misty May-Treanor and Kerri Walsh Jennings of the U.S. at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

British Prime Minister David Cameron (R) and his wife Samantha react during the women's beach volleyball semifinal match between China's Xue Chen and Zhang Xi and Kerri Walsh Jennings and Misty May-Treanor of the U.S. at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Misty May-Treanor (R) and Kerri Walsh Jennings of the U.S. celebrate winning their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen and Zhang Xi walk after losing their women's beach volleyball semifinal match against Misty May-Treanor and Kerri Walsh Jennings of the U.S. at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Misty May-Treanor (L) and Kerri Walsh Jennings of the U.S. celebrate winning their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Misty May-Treanor (R) and Kerri Walsh Jennings of the U.S. celebrate winning their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL TPX IMAGES OF THE DAY)

Misty May-Treanor (C) and Kerri Walsh Jennings of the U.S. celebrate winning their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Misty May-Treanor (R) and Kerri Walsh Jennings of the U.S. celebrate winning their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

Kerri Walsh Jennings (L) and Misty May-Treanor of the U.S. celebrate winning their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Suzanne Plunkett (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL TPX IMAGES OF THE DAY)

Kerri Walsh Jennings (R) of the U.S. celebrates a point during their women's beach volleyball semifinal match against China's Xue Chen and Zhang Xi at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

China's Zhang Xi (L) tries to save a point past her team mate Xue Chen during their women's beach volleyball semifinal match against Kerri Walsh Jennings and Misty May-Treanor of the U.S. at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)

China's Xue Chen (centre L) spikes the ball against Kerri Walsh Jennings of the U.S. during their women's beach volleyball semifinal match at Horse Guards Parade during the London 2012 Olympic Games August 7, 2012. REUTERS/Marcelo Del Pozo (BRITAIN - Tags: OLYMPICS SPORT VOLLEYBALL)