> Xu was sued in 2019 for calling tai chi "grandmaster" Chen Xiaowang a fraud, and the Chinese court ordered him to pay Chen approximately US$60,000 in damages

> Xu was sued in 2019 for calling tai chi "grandmaster" Chen Xiaowang a fraud, and the Chinese court ordered him to pay Chen approximately US$60,000 in damages and to apologize for seven consecutive days on social media. > Additionally, his social credit rating was lowered to the point where he could not rent, own property, stay in certain hotels, travel on high speed rail or buy plane tickets