Dimitrov Warms Up Ahead Of Opening Match In Miami Mar 22, 2018 Third seed Grigor Dimitrov warms up on a practice court ahead of his second-round match against Maximilian Marterer at the Miami Open presented by Itau. Watch live tennis at tennistv.com. Tags: 2018 Grigor Dimitrov Miami Share 0 Share on Facebook Tweet Tweet on Twitter +1 +1 on Google Plus