Sara Errani Pictures

  • SINGAPORE - OCTOBER 25: Serena Williams of the United States poses for a photograph with her Dubai Duty Free World Number One singles trophy along with Roberta Vinci and Sara Errani of Italy who hold their Dubai Duty Free doubles World Number One Trophies at the WTA Year End Gala Party at the Marina Bay Sands Hotel during the BNP Paribas WTA Finals at Singapore Sports Hub on October 25, 2014 in Singapore. (Photo by Clive Brunskill/Getty Images)