WTA chief executive calls for clarity on safety of Peng Shuai

Shuai Peng of China plays a backhand during her Women's Doubles match at the Australian Open (Photo by Clive Brunskill/Getty Images)

Steve Simon, the chief executive of the Women’s Tennis Association (WTA), has requested “independent and verifiable proof” that Chinese player Peng Shuai is safe amid growing concerns over her whereabouts. A