SHANGHAI, CHINA - OCTOBER 10: Casper Ruud of Norway returns a shot in the Men's Singles Second Round match against Yunchaokete Bu of China on Day four of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 10, 2026 in Shanghai, China. (Photo by Shi Tang/Getty Images)

SHANGHAI, CHINA - OCTOBER 10: Yunchaokete Bu of China returns a shot in the Men's Singles Second Round match against Casper Ruud of Norway on Day four of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 10, 2026 in Shanghai, China. (Photo by Shi Tang/Getty Images)

Czech Republic's Nikola Bartunkova serves to Russia's Mirra Andreeva during their women's singles semi-final match at the China Open tennis tournament in Beijing on October 10, 2026. (Photo by Adek BERRY / AFP via Getty Images)

Czech Republic's Nikola Bartunkova serves to Russia's Mirra Andreeva during their women's singles semi-final match at the China Open tennis tournament in Beijing on October 10, 2026. (Photo by Adek BERRY / AFP via Getty Images)

Russia's Mirra Andreeva serves to Czech Republic's Nikola Bartunkova during their women's singles semi-final match at the China Open tennis tournament in Beijing on October 10, 2026. (Photo by Adek BERRY / AFP via Getty Images)

Russia's Mirra Andreeva serves to Czech Republic's Nikola Bartunkova during their women's singles semi-final match at the China Open tennis tournament in Beijing on October 10, 2026. (Photo by Adek BERRY / AFP via Getty Images)

Czech Republic's Nikola Bartunkova prepares to serve to Russia's Mirra Andreeva during their women's singles semi-final match at the China Open tennis tournament in Beijing on October 10, 2026. (Photo by Pedro PARDO / AFP via Getty Images)

Czech Republic's Nikola Bartunkova serves to Russia's Mirra Andreeva during their women's singles semi-final match at the China Open tennis tournament in Beijing on October 10, 2026. (Photo by Pedro PARDO / AFP via Getty Images)