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Russia's Roman Safiullin hits a return against Britain's Cameron Norrie during their men's singles match on day four of the Australian Open tennis tournament in Melbourne on February 11, 2021. (Photo by William WEST / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE -- (Photo by WILLIAM WEST/AFP via Getty Images)

Russia's Roman Safiullin hits a return against Britain's Cameron Norrie during their men's singles match on day four of the Australian Open tennis tournament in Melbourne on February 11, 2021. (Photo by William WEST / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE -- (Photo by WILLIAM WEST/AFP via Getty Images)