Watch Nick Kyrgios hit an unbelievable tweener winner against Borna Coric in the fourth round of the Miami Open presented by Itau. In press conference the Australian player said: "I just lost concentration. Kind of got a little bored in the second set, like my concentration just started veering off.
Like, I was 40-15 up. I think it was maybe at 2-1 in the second. I started hitting, like, a Federer serve and stuff. I just lost a bit of concentration. He's a good enough player to just capitalize."