Delbonis Knocks Out Ferrer In Hamburg 2017 Jul 27, 2017 Argentina's Federico Delbonis discusses his big win against Spaniard David Ferrer at the German Tennis Championships 2017 in Hamburg. Watch live tennis at tennistv.com. Tags: 2017 Federico Delbonis Hamburg Interviews Share 0 Share on Facebook Tweet Tweet on Twitter +1 +1 on Google Plus