「Nitto ATPファイナルズ」(イギリス・ロンドン/11月10~17日/賞金総額900万ドル/室内ハードコート)

LONDON, ENGLAND - NOVEMBER 10: Novak Djokovic of Serbia celebrates victory after winning his singles match against Matteo Berrettini of Italy during Day One of the Nitto ATP World Tour Finals at The O2 Arena on November 10, 2019 in London, England. (Photo by Justin Setterfield/Getty Images)