Yang Shu-chun, Liu Tsung-da, the World Taekwondo Federation, and Chinese Taipei / 2010s
The ruling became a national scandal in Taiwan because the legality of the socks was disputed. World Taekwondo Federation officials claimed Yang had deliberately used an older Velcro-attached sensor system that could be modified, while her coach and equipment supplier argued that an inspector had told her to change socks because of a poor signal and that the older design had not been officially banned before the Games. They also noted that other athletes had used similar socks without punishment and that the heel sensors had already been removed. Yang's request for the inspector's testimony and surveillance footage was rejected. Taiwanese politicians across party lines called the decision unjust, while online supporters alleged that Zhao Lei, who was associated with Chinese gold-medal favorite Wu Jingyu, had helped eliminate a major rival; that conspiracy was never established as fact. The dispute escalated into anti-Korean protests, boycotts, egg-throwing, racist signs of exclusion at businesses, and the hacking of the Asian Taekwondo Union website after it published an inflammatory article blaming Chinese Taipei. The international federation ultimately imposed a three-month suspension on Yang, a twenty-month suspension on Liu, and a US$50,000 fine on the Chinese Taipei Taekwondo Association for negligence and wrongdoing, leaving Sockgate as a lasting example of how opaque equipment rules, inconsistent officiating, and geopolitical tension can turn a routine bout into a sporting crisis.
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