Roger Federer has been named as the top seed in the men's Singles Tennis tournament which begins at Wimbledon on Saturday.
Wimbledon finalist Andy Murray is seeded third behind Federer and Serbia's Novak Djokovic.
David Ferrer of Spain is fourth, with France's Jo-Wilfried Tsonga fifth, while Czech Tomas Berdych, Serb Janko Tipsarevic and Argentina's Juan Martin Del Potro make up the top eight.
Unlike at the grand slams, where there are 32 seeds in a 128-strong field, the Olympic Singles tournament is a 64-man field featuring 16 seeds. It's the first time since tennis was reintroduced to the Games as a medal sport (at Seoul 1988) that it will be played on grass.
World number one Victoria Azarenka of Belarus heads the seedings for the women's Singles with Poland's Agnieszka Radwanska second, followed by Russian Maria Sharapova and Wimbledon champion Serena Williams of the USA.
The men's Doubles field is headed by American twins Bob and Mike Bryan, with defending champions Federer and Stanislas Wawrinka seeded sixth.
Liezel Huber and Lisa Raymond of the USA top the standings in the women's Doubles whilst their countrywomen Venus and Serena Williams, the Beijing gold medallists and Wimbledon champions, are unseeded.