The three players will have a hearing in late September.
Spaniard nets first ever ATP title in third final this season.
"Everything takes a lot of energy," Roland Garros champion says of New York experience.
McEnroe doesn't seem to know if the pair will ever work together.
The men's singles draw for the 2016 U.S. Open revealed some interesting matchups.
Top-seeded Serena Williams will begin her U.S. Open with a very tricky test.
Double-faults, aces and Top 10 domination. We crunch the numbers ahead of the 2016 U.S. Open.
