Sixteen mixed doubles teams will be determined in Rio from players already in the Olympics. But the Big Four of Nadal, Novak Djokovic , Andy Murray and Roger Federer are all on the list. 9 Dominic Thiem the only one missing.All of the top 20 women are on the list, led by reigning gold medalist Serena Williams. Murray is the reigning gold medalist, while Djokovic and Federer are each seeking a first Olympic singles title.Overall, 14 of the top 15 men are on the roster, with No. Five-time Grand Slam champion Maria Sharapova will miss the Olympics because of her doping suspension.There will be 64 players in the singles draws and 32 in doubles.

Source: Times of India July 15, 2016 16:15 UTC