There are a lot of famouse tennis players weather they play singles or doubles. The most famouse women tennis player today is Martina Hinigs- she has won 5 Grand Slams, Roger Federer is most famouse tennis player today from mens side, he is known as having the best serves in history. They ar both from Switzerland. There are a lot more such as Maria Sharapove, she is from russia, but those two are the top players.