Federer Discusses How He Adjusted To del Potro Miami 2017 Mar 27, 2017 Roger Federer talks about how he solved Juan Martin del Potro on Monday at the Miami Open presented by Itau. Watch live tennis at tennistv.com. Tags: 2017 Interviews Masters 1000 Miami Roger Federer Share 0 Share on Facebook Tweet Tweet on Twitter +1 +1 on Google Plus