World number two Rafael Nadal slumped to a second-straight defeat at the United Cup Monday in a setback to his Australian Open preparations, but Stefanos Tsitsipas and Iga Swiatek were both on song.
World number two Rafael Nadal slumped to a second-straight defeat at the United Cup Monday in a setback to his Australian Open preparations, but Stefanos Tsitsipas and Iga Swiatek were both on song.
