The game of tennis is one of the most popular and most watched sports in many different places around the globe. When it comes to women's tennis, however, not many people know that many great players that are playing professionally. Of course there are names like Venus Williams, Serena Williams, and Maria Sharapova for example. But there are so many more great female tennis players on the pro tour that get overlooked. Caroline Wozniacki is one of these players that not many people have heard of, but who is a force on the court.

What is even more surprising about Wozniacki is her age. She is only 19 years old and is playing professional women's tennis. She is playing against the best competition in the world at her tender age, yet she has proven herself time and time again. Wozniacki was born in Odense, and has become the only Danish tennis player to ever break into the top 300 players in the world on the WTA. Not only has Wozniacki broken into the top 300 in the world, but she was currently rated the 10th best tennis player on earth in May of 2009.

Wozniacki has nothing but a bright future ahead of her. She has already become one of the dominant players on the WTA, and yet she is only 19 years old and not as experienced as other players as well. Once Wozniacki learns how to play the game of tennis with wisdom and gains experience through the WTA, she will certainly be one to watch.

Ana Ivanovic grew up in a middle class family in Belgrade, Serbia (Yugoslavia) with her parents, Dragena and Miroslav, along with brother Milos. Unlike many tennis players, Ivanovic chose not to have a coach and she still attends school where she studies finance. Growing up, Ivanovic always enjoyed the games of tennis and often was influenced by her idol, fellow tennis great, Monica Seles. Ivanovic entered the professional world of tennis in 2003 and immediacy started her endorsement career. Originally, Ivanovic endorsed for Nike, but she later began endorsing Adidas.

Since her entrance in the professional world of tennis, Ivanovic has reached the number one ranking in the world; she is currently ranked eighth. Ivanovic has played in all four Grand Slam Singles events and three of the four in doubles. In doubles, Ivanovic has reached the thirrd round and Wimbledon and the U.S. Open in 2005 and 2006, but that is the furthest she went.

Singles has been more successful for Ivanovic; in 2007 she made it to the fourth round at the U.S. Open and to the semi-finals at Wimbledon. In 2007, Ivanovic made it all the way to the finals at the French Open, but lost to Justine Henin. Ivanovic was once again runner up in 2008 at the Australian Open when she was defeated by Maria Sharapova. Ivanovic finally won her first title in 2008, when she beat Dinara Safina at the French Open.

Ivanovic currently resides in Basel, Switzerland where she continues to improve on her tennis game and advertise her endorsements.

The Russian-born professional tennis player, Vera Zvonareva, started playing when she was just six years old. She came from a sports oriented family and joined the WTA Tour in 2000 with a number six ranking from her past wins. During her first few years though, she had very unstable emotions during matches and came up short of the expectations of reaching the top ten list.

Her popularity actually started when she defeated Roland Garros in the 2002 tournament and then Venus Williams in 2003. Her second win with the WTA Tour in 2004 put her in the top ten world tennis players. The unfortunate year of 2005 however, placed her in the 42nd ranking with the WTA Tour. She lost the first half of her tournaments and also had some health problems.

Zvonareva decided she needed a drastic change in 2006. Her outfits, her tennis racket, and most importantly, her coach changed. She picked up Samuel Sumyk from Florida as her coach. Things picked up from there with her comeback game in Cincinnati defeating Katarina Srebotnik. Becoming more stable, she ranked number 24 and won the Wimbledon and the US Open titles. A wrist injury came in 2007 along with a ranking of 22nd. She used that time to complete her education in Russia. Her most successful year has been in 2008 with two tournament wins and a bronze medal in the Beijing Olympics and reaching the number seven ranking in singles.

Victoria Azarenka was born in Minsk, Soviet Union and is a professional tennis player. Azarenka, a former junior world champion, is currently ranked number nine in the world; her highest ranking was eighth place. Azarenka turned professional in 2003 and has since moved to the United States where she resides in Scottsdale, Arizona. Since her professional debut, Azarenka currently holds a record of 164-74 in singles and 81-33 in doubles; she has earned over $2 million in winnings.

Azarenka made her first trip to a Grand Slam Singles event in 2007 when she advanced to the third round at Wimbledon and the fourth round at the U.S Open. In 2008, Azarenka once again made it to the third round at Wimbledon. Azarenka has seen the most success in singles in 2009 when she advanced to the fourth round at the Australian Open, and made it all the way to the quarter finals at the French Open.

Although successful in singles, Azarenka has also made her mark in doubles tennis. Azarenka played at the U.S. Open in 2007 and 2008, and made it to the quarter finals in 2008 at both the French Open and Wimbledon. Azarenka has found the most success in mixed doubles play. In 2007, Azarenka along with partner Max Mirnyi, were runner up at the Australian Open after losing to Daniel Nestor and Elena Likhovtseva in the finals. Azarenka won her first title in 2007 when she and partner Max Mirnyi won the U.S Open. Azarenka received another title in 2008 when she and new partner, Bob Bryan, came in first at the French Open.

Juan Martin Del Potro was born and raised in the country of Argentina and is a professional tennis player that holds the highest rank in his home country. Del Potro recently reached his highest worldwide ranking at number 5 and holds a professional singles record of 110-61. Before he turned professional in 2005, Del Potro had quite the amateur career. Del Potro began playing tennis when he was just 7 years old and was lucky enough to be discovered by former tennis pro Ugo Colombini, who is currently his agent. After years of practice and intense coaching, at the age of 15, Del Potro won his first professional match and turned pro the following year.

In professional singles, Del Potro has made an appearance in all 4 major Grand Slam events, but has yet to win a first place title. Del Potro has seen the most success at the Australian Open and currently at the French Open. At his appearance at the Australian Open, Del Potro made it to the quarter finals when he defeated Mischa Zverev in the first round, Florian Mayer in the second round, Gilles Muller in the 3rd round and Marin Cilic in the 4th round. After advancing to the quarter finals, Del Potro lost to number 2 ranked Roger Federer.

Del Potro is currently competing in the 2009 French Open. In the first round, Del Potro defeated Michal Llodra and advanced to beat Viktor Troicki in the 2nd round. In the 3rd round Del Potro defeated Igor Andreev, and he recently beat Jo-Wilfried Tsonga in the 4th round to advance to the quarter finals where he will take on Tommy Robredo.