SHANGHAI, CHINA - OCTOBER 10: David Goffin of Belgium in action against Roger Federer of Switzerland on day six of 2019 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 10, 2019 in Shanghai, China. (Photo by Zhe Ji/Getty Images)
SHANGHAI, CHINA - OCTOBER 10: David Goffin of Belgium in action against Roger Federer of Switzerland on day six of 2019 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 10, 2019 in Shanghai, China. (Photo by Zhe Ji/Getty Images)