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Slovakia's Andrej Martin hits a return against Brazil's Thiago Monteiro during their men's singles match on day two of the Australian Open tennis tournament in Melbourne on February 9, 2021. (Photo by William WEST / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE -- (Photo by WILLIAM WEST/AFP via Getty Images)

Slovakia's Andrej Martin hits a return against Brazil's Thiago Monteiro during their men's singles match on day two of the Australian Open tennis tournament in Melbourne on February 9, 2021. (Photo by William WEST / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE -- (Photo by WILLIAM WEST/AFP via Getty Images)