currently Roger Federer is the world's number one men's tennis player, followed by Nadal and Djokovic
Novak Djokovic is the number one male player in the world. 49-1 this year!
The number one mens tennis player is Novak Djokovic of Serbia.
Roger Federer ended 2009 as world number 1
Ma Long from China is #1
The World Number 1 seed Is Roger Federer
As of January 19, 2014, the number one tennis player in the ATP is Rafael Nadal.
No he is not, Rafael Nadal is currently ranked #1 in the world.
The world's number one female tennis champion is Serena Williams. Williams represents the United States, and has been ranked number one female champion in the world on six different occasions.