Kevin Krawietz Pictures
LONDON, ENGLAND - NOVEMBER 13: Kevin Krawietz of Germany, playing partner of Andreas Mies of Germany plays a forehand volley in their doubles match against Nicolas Mahut and Pierre-Hugues Herbert of France during Day Four of the Nitto ATP World Tour Finals at The O2 Arena on November 13, 2019 in London, England. (Photo by Justin Setterfield/Getty Images)