JOHN ISNER IS INTO THE SEMIS OF THE MIAMI OPEN, AN ATP MASTERS 1000 EVENT. HE HAS UPSET THE 4TH SEED KEI NISHIKORI 64 63. ISNER HAS NEVER BEFORE REACHED THE SEMIS IN MIAMI AND HE IS THE FIRST AMERICAN SINCE MARDY FISH IN 2012 TO REACH THE MIAMI SEMIS