The Association of Tennis Professionals (ATP) was formed in 1972 to protect the interests of male professional Tennis players.
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Roger Federer is a Swiss tennis professional, currently ranked World No. 1. Many experts and his own peers believe Federer may become the greatest player in history
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2

Rafael "Rafa" Nadal is a Spanish professional tennis player. As of June 2007, he is ranked second in the world. He is a two time Grand Slam champion, having won two consecutive French Open singles titles (2005-2006)
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3

Andrew Stephen "Andy" Roddick is an American professional tennis player and a former World No. 1. He is the top-ranked American player and third-ranked player in the world as of May 2007. He finished sixth in the 2006 ATP Race.
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4

Nikolay Davydenko is currently the number one ranked Russian male tennis player, fourth in the world, and the winner of ten ATP singles titles.
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5

Fernando Francisco González, nicknamed El bombardero de La Reina (Spanish "The La Reina Bomber"), is a professional tennis player from Chile. He is known for having one of the hardest hitting forehands in the circuit.
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Novak Djokovic is a Serbian tennis player, currently ranked 6th in the world on the ATP Tour.
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Ivan Ljubicic is a Croatian tennis player. His career-high ATP Entry ranking was No. 3, and his current Entry list ranking is No. 8 (as of March 2007).
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James Riley Blake is an American professional tennis player and is currently the 8th ranked player in the world (8th in the ATP Race points). He is the second-ranked American player behind Andy Roddick.
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9

Tommy Robredo Garcés is a professional tennis player from Spain. On 8 May 2006, he broke into the world's top ten for the first time after rising to a rank of No. 10 in the world, and apart from one week he has maintained a position in the top ten ever since.
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10

Thomas Mario Haas is a German tennis player. He is 187 cm tall and plays right-handed. He is currently ranked #10 in the world. He reached a career-high ranking of World No. 2 in May 2002. Tommy is particularly well-known for his exceptionally strong forehand.
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