SHANGHAI, CHINA - OCTOBER 11: Jakub Mensik of Czechia returns a shot in the Men's Singles Third Round match against Francisco Cerundolo of Argentina on Day five of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 11, 2026 in Shanghai, China. (Photo by Shi Tang/Getty Images)

SHANGHAI, CHINA - OCTOBER 11: Jakub Mensik of Czechia returns a shot in the Men's Singles Third Round match against Francisco Cerundolo of Argentina on Day five of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 11, 2026 in Shanghai, China. (Photo by Shi Tang/Getty Images)

SHANGHAI, CHINA - OCTOBER 11: Jakub Mensik of Czechia returns a shot in the Men's Singles Third Round match against Francisco Cerundolo of Argentina on Day five of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 11, 2026 in Shanghai, China. (Photo by Shi Tang/Getty Images)

SHANGHAI, CHINA - OCTOBER 11: Francisco Cerundolo of Argentina returns a shot in the Men's Singles Third Round match against Jakub Mensik of Czechia on Day five of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 11, 2026 in Shanghai, China. (Photo by Shi Tang/Getty Images)

SHANGHAI, CHINA - OCTOBER 11: Francisco Cerundolo of Argentina returns a shot in the Men's Singles Third Round match against Jakub Mensik of Czechia on Day five of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 11, 2026 in Shanghai, China. (Photo by Shi Tang/Getty Images)

SHANGHAI, CHINA - OCTOBER 11: Jakub Mensik of Czechia returns a shot in the Men's Singles Third Round match against Francisco Cerundolo of Argentina on Day five of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 11, 2026 in Shanghai, China. (Photo by Shi Tang/Getty Images)

SHANGHAI, CHINA - OCTOBER 11: Francisco Cerundolo of Argentina returns a shot in the Men's Singles Third Round match against Jakub Mensik of Czechia on Day five of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 11, 2026 in Shanghai, China. (Photo by Shi Tang/Getty Images)

SHANGHAI, CHINA - OCTOBER 11: Jakub Mensik of Czechia returns a shot in the Men's Singles Third Round match against Francisco Cerundolo of Argentina on Day five of 2026 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 11, 2026 in Shanghai, China. (Photo by Shi Tang/Getty Images)