The Spaniard has a leg up on the four other players that can potentially leave New York as No.1.
Wimbledon finalist sees Miami Open champion ruling New York City.
A short film from the ITF documents the history of tennis, from the game's medieval roots to the modern day.
Novak Djokovic is absent from the official US Open poster as his Flushing Meadows hopes dim.
Caroline Garcia returns to the Top-20 for the first time in over three years in this week's rankings
Coverage begins on Tuesday on ESPN+ and ESPNEWS.
The Croatian jumps 123 spots after his rousing title run at Cincinnati.
