Alexander Zverev of Germany celebrates in his third singles round robin match against John Isner of The United States during Day Six of the Nitto ATP...
{"Image ImageDescription": "LONDON, ENGLAND - NOVEMBER 16:  Alexander Zverev of Germany celebrates in his third singles round robin match against John Isner of The United States during Day Six of the Nitto ATP Finals at The O2 Arena on November 16, 2018 in London, England.  (Photo by Clive Brunskill/Getty Images)", "Image Copyright": "2018 Getty Images"}