Olympic Games—Tokyo, Japan
Second-round results:
Stefanos Tsitsipas Defeats Frances Tiafoe 6-3, 6-4
Karen Khachanov Defeats James Duckworth 7-5, 6-1
Kei Nishikori Defeats Marcos Grion 7-6(5), 3-6, 6-1
Diego Schwartzman Defeats Tomas Machac 6-4, 7-5
Ugo Humbert Defeats Miomir Kecmanovic 6-4, 7-6(5), 7-5
Jeremy Chardy Defeats Aslan Karatsev 7-5, 4-6, 6-3
Liam Brody Defeats Hubert Hurkacz 7-5, 3-6, 6-3
Ilya Ivashka Defeats Mikhail Kukushkin 6-7(4), 6-3, 6-3
