SHANGHAI, CHINA - OCTOBER 14: Stefanos Tsitsipas of Greece returns a shot 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: Stefanos Tsitsipas of Greece returns a shot 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: Stefanos Tsitsipas of Greece returns a shot 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: Stefanos Tsitsipas of Greece returns a shot 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: Stefanos Tsitsipas of Greece returns a shot 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: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)