Yang Shu'an, the high-profile organizing committee vice president, nearly stumbled in a briefing when - speaking in English - he was asked about Peng and almost mentioned her by name.
Russia's Olympic doping case helps China skirt dicey topics
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Asked by L’Equipe why the post disappeared from Peng’s account, she said: “I erased it.”
Peng Shuai, Chinese tennis player, emerges at Olympics, gives controlled interview
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