BEIJING, CHINA - OCTOBER 09: Elise Mertens of Belgium reacts during the Women's Singles quarterfinal match against Iga Swiatek of Poland on day ten of China Open at the National Tennis Center on October 09, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 09: Elise Mertens of Belgium reacts during the Women's Singles quarterfinal match against Iga Swiatek of Poland on day ten of China Open at the National Tennis Center on October 09, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 09: Elise Mertens of Belgium reacts during the Women's Singles quarterfinal match against Iga Swiatek of Poland on day ten of China Open at the National Tennis Center on October 09, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - OCTOBER 09: Elise Mertens of Belgium reacts during the Women's Singles quarterfinal match against Iga Swiatek of Poland on day ten of China Open at the National Tennis Center on October 09, 2026 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

Poland's Iga Swiatek serves to Belgium's Elise Mertens during their women's singles quarter-final at the China Open tennis tournament in Beijing on October 9, 2026. (Photo by Pedro Pardo / AFP via Getty Images)

Belgium's Elise Mertens hits a return to Poland's Iga Swiatek during their women's singles quarter-final at the China Open tennis tournament in Beijing on October 9, 2026. (Photo by Pedro Pardo / AFP via Getty Images)

Poland's Hubert Hurkacz hits a return to Serbia's Novak Djokovic during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 9, 2026. (Photo by Hector RETAMAL / AFP via Getty Images)

Poland's Hubert Hurkacz hits a return to Serbia's Novak Djokovic during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 9, 2026. (Photo by Hector RETAMAL / AFP via Getty Images)