There are so many promising American players challenging the established pros on tour right now that it’s hard not to foresee an American world number one within the next ten years. One of the players who have made the biggest waves despite his young age is 19-year-old Reilly Opelka who in the first round of the Australian Open took 11th seeded David Goffin to five sets: 6-4, 4-6, 6-2, 4-6, 6-4 …
