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Kamil Majchrzak of Poland hits a forehand return during his men's singles match against Guido Pella of Argentina at the ATP Cup tennis tournament in Sydney on January 4, 2020. (Photo by William WEST / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE -- (Photo by WILLIAM WEST/AFP via Getty Images)

Kamil Majchrzak of Poland hits a forehand return during his men's singles match against Guido Pella of Argentina at the ATP Cup tennis tournament in Sydney on January 4, 2020. (Photo by William WEST / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE -- (Photo by WILLIAM WEST/AFP via Getty Images)