SHANGHAI, CHINA - OCTOBER 03: Stan Wawrinka of Switzerland returns a shot in the 1st Round match against Giovanni Mpetshi Perricard of France on Day 4 of 2024 Shanghai Rolex Masters at Qi Zhong Tennis Centre on October 03, 2024 in Shanghai, China. (Photo by Zhe Ji/Getty Images)

SHANGHAI, CHINA - OCTOBER 03: Stan Wawrinka of Switzerland returns a shot in the 1st Round match against Giovanni Mpetshi Perricard of France on Day 4 of 2024 Shanghai Rolex Masters at Qi Zhong Tennis Centre on October 03, 2024 in Shanghai, China. (Photo by Zhe Ji/Getty Images)

SHANGHAI, CHINA - OCTOBER 03: Stan Wawrinka of Switzerland returns a shot in the 1st Round match against Giovanni Mpetshi Perricard of France on Day 4 of 2024 Shanghai Rolex Masters at Qi Zhong Tennis Centre on October 03, 2024 in Shanghai, China. (Photo by Zhe Ji/Getty Images)

SHANGHAI, CHINA - OCTOBER 03: Stan Wawrinka of Switzerland returns a shot in the 1st Round match against Giovanni Mpetshi Perricard of France on Day 4 of 2024 Shanghai Rolex Masters at Qi Zhong Tennis Centre on October 03, 2024 in Shanghai, China. (Photo by Zhe Ji/Getty Images)

SHANGHAI, CHINA - OCTOBER 03: Stan Wawrinka of Switzerland returns a shot in the 1st Round match against Giovanni Mpetshi Perricard of France on Day 4 of 2024 Shanghai Rolex Masters at Qi Zhong Tennis Centre on October 03, 2024 in Shanghai, China. (Photo by Zhe Ji/Getty Images)

SHANGHAI, CHINA - OCTOBER 03: Stan Wawrinka of Switzerland returns a shot in the 1st Round match against Giovanni Mpetshi Perricard of France on Day 4 of 2024 Shanghai Rolex Masters at Qi Zhong Tennis Centre on October 03, 2024 in Shanghai, China. (Photo by Zhe Ji/Getty Images)

SHANGHAI, CHINA - OCTOBER 03: Stan Wawrinka of Switzerland returns a shot in the 1st Round match against Giovanni Mpetshi Perricard of France on Day 4 of 2024 Shanghai Rolex Masters at Qi Zhong Tennis Centre on October 03, 2024 in Shanghai, China. (Photo by Zhe Ji/Getty Images)

SHANGHAI, CHINA - OCTOBER 03: Stan Wawrinka of Switzerland returns a shot in the 1st Round match against Giovanni Mpetshi Perricard of France on Day 4 of 2024 Shanghai Rolex Masters at Qi Zhong Tennis Centre on October 03, 2024 in Shanghai, China. (Photo by Zhe Ji/Getty Images)