David Goffin of Belgium competes during the ATP Cup quarter final match against Rafael Nadal of Spain in Sydney, Australia, on Jan. 10, 2020. (Xinhua/Zhu Hongye)

David Goffin of Belgium celebrates after winning the ATP Cup quarter final match against Rafael Nadal of Spain in Sydney, Australia, on Jan. 10, 2020. (Xinhua/Zhu Hongye)

Rafael Nadal of Spain reacts during the ATP Cup quarter final match against David Goffin of Belgium in Sydney, Australia, on Jan. 10, 2020. (Xinhua/Zhu Hongye)

Rafael Nadal of Spain competes during the ATP Cup quarter final match against David Goffin of Belgium in Sydney, Australia, on Jan. 10, 2020. (Xinhua/Zhu Hongye)

David Goffin of Belgium celebrates after winning the ATP Cup quarter final match against Rafael Nadal of Spain in Sydney, Australia, on Jan. 10, 2020. (Xinhua/Zhu Hongye)

Rafael Nadal of Spain reacts during the ATP Cup quarter final match against David Goffin of Belgium in Sydney, Australia, on Jan. 10, 2020. (Xinhua/Zhu Hongye)