BNP Paribas WTA Finals: Singapore 2016 - Previews [Getty Images]

SINGAPORE - OCTOBER 22: Garbine Muguruza of Spain practices prior to the BNP Paribas WTA Finals Singapore at Singapore Sports Hub on October 22, 2016 in Singapore. (Photo by Clive Brunskill/Getty Images)

Getty Images Sport Clive Brunskill