(Reuters) - Wimbledon champions and world number ones Novak Djokovic and Serena Williams head the field for the men's and women's events at this year's U.S. Open, the United States Tennis Association announced on Wednesday.
Djokovic, who has reached the U.S. Open final five times and won the title in 2011, tops an elite list that includes other former champions in Roger Federer (2004-08), Rafa Nadal (2010, 2013), Andy Murray (2012) and last year's winner Marin Cilic.
Serbian Djokovic will be aiming to land his third grand slam crown this year, having triumphed at the Australian Open in February before beating Federer in four sets in the Wimbledon final earlier this month.