An employee of China’s state television posted pictures of the missing tennis player Peng Shuai on the internet in an attempt to allay concerns about her disappearance after reporting a high-ranking sexual assault charge. The photos appeared on Twitter on Friday, a platform that most Internet users in China do not have access to. The state employee, Shen Shiwei, wrote that they were on Peng’s account on the WeChat messaging service with the comment “Happy weekend.” The Communist Party government faces growing calls from tennis stars and the professional circuit to prove that Peng, who played three Olympics and was...