SHANGHAI, CHINA - OCTOBER 14:Stefanos Tsitsipas of Greece reacts in the Men's Singles Fourth Round match against Daniil Medvedev on Day eight of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 14, 2026 in Shanghai, China. (Photo by Lintao Zhang/Getty Images)

SHANGHAI, CHINA - OCTOBER 14: Daniil Medvedev reacts in the Men's Singles Fourth Round match against Stefanos Tsitsipas of Greece on Day eight of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 14, 2026 in Shanghai, China. (Photo by Lintao Zhang/Getty Images)

SHANGHAI, CHINA - OCTOBER 14: Daniil Medvedev reacts in the Men's Singles Fourth Round match against Stefanos Tsitsipas of Greece on Day eight of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 14, 2026 in Shanghai, China. (Photo by Lintao Zhang/Getty Images)

SHANGHAI, CHINA - OCTOBER 14: Daniil Medvedev reacts in the Men's Singles Fourth Round match against Stefanos Tsitsipas of Greece on Day eight of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 14, 2026 in Shanghai, China. (Photo by Lintao Zhang/Getty Images)

SHANGHAI, CHINA - OCTOBER 14: Daniil Medvedev reacts in the Men's Singles Fourth Round match against Stefanos Tsitsipas of Greece on Day eight of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 14, 2026 in Shanghai, China. (Photo by Lintao Zhang/Getty Images)

Supporters of Russia's Daniil Medvedev hold up a sign during his men's singles match against Greece's Stefanos Tsitsipas at the Shanghai Masters tennis tournament in Shanghai on October 14, 2026. (Photo by Hector RETAMAL / AFP via Getty Images)

Greece's Stefanos Tsitsipas wipes his face between points against Russia's Daniil Medvedev during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 14, 2026. (Photo by Hector RETAMAL / AFP via Getty Images)

Greece's Stefanos Tsitsipas reacts after a point against Russia's Daniil Medvedev during their men's singles match at the Shanghai Masters tennis tournament in Shanghai on October 14, 2026. (Photo by Hector RETAMAL / AFP via Getty Images)