Top-ranked Novak Djokovic and past US Open champions Roger Federer and Rafael Nadal head the men's field for the year's last Grand Slam tournament.
Djokovic is 48-1 in singles matches with eight titles in 2011, including at Wimbledon and the Australian Open. He's a two-time runner-up at the US Open, losing to Federer in the 2007 final and to Nadal last year.
The top 101 men in the ATP rankings received direct entry into the provisional field announced on Thursday by the US Tennis Association. Three players used special protected rankings to get into the draw: Fernando Gonzalez, Tommy Haas and Ivo Karlovic.
The US Open starts August 29 in New York.