Kazakhstan's Elena Rybakina signs autographs after retiring due to an injury from her quarter-final match against Canada's Leylah Fernandez during the WTA Pan Pacific Open tennis tournament at Ariake Coliseum in Tokyo on October 30, 2026. Elena Rybakina withdrew with a neck injury, a day after she secured the year-end world number one ranking. (Photo by Yuichi YAMAZAKI / AFP via Getty Images)