Miami Open presented by Itaú—Miami, FL, U.S.A.
Fourth-round results:
(14) John Isner Defeats (2) Marin Cilic 76(0) 63
(4) Alexander Zverev Defeats (17) Nick Kyrgios 64 64
(5) Juan Martin del Potro Defeats (22) Filip Krajinovic 64 62
(6) Kevin Anderson Defeats Frances Tiafoe 76(3) 64
(16) Pablo Carreno Busta Defeats (31) Fernando Verdasco 60 63
(19) Hyeon Chung Defeats Joao Sousa 64 63
(20) Milos Raonic Defeats Jeremy Chardy 63 64
(29) Borna Coric Defeats Denis Shapovalov 76(2) 46 64
