Norway's Viktor Durasovic and Ulrikke Eikeri hit a return to Czech Republic's Tomas Machac and Karolina Muchova during their mixed-doubles match at the United Cup tennis tournament on Ken Rosewall Arena in Sydney on December 29, 2024. (Photo by DAVID GRAY / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE -- (Photo by DAVID GRAY/AFP via Getty Images)