John Isner-Juan Manual Del Potro is the first semi-finalist couple of Miami’s masters. America eliminated 0-2 with sets, 1-6 and 4-6 Korean Chung in just 1 hour and 9 minutes of play.

Isner forced his opponent into the first set, breaking into service twice in the 4th and 6th gays. In the second set though he started to serve, Chung was broken in the 5th gay by lost the 4-6 set and the whole 0-2 match.

Argentine Del Potro suffered little against Raonic, but eventually managed to win 2-1 with a downturn, 5-7, 7-6, 7-6.

The first set started well, but at the last moment, when it was thought that this would be “tie break,” Isner broke into service in the 12th gay.

In the next set Raonic was only mistaken in tie tie with Isner who won 7-1. The same situation in the last set, with the American who did not miss the match point in the first tie-break (7-3).