Isner Thrilled With Serving Performance Against Cilic In Miami 2018 Mar 27, 2018 John Isner reacts to his big win against second seed Marin Cilic in the Round of 16 at the Miami Open presented by Itau on Tuesday. Watch live tennis at tennistv.com. Tags: 2018 Interviews John Isner Miami Share 0 Share on Facebook Tweet Tweet on Twitter +1 +1 on Google Plus