Maria Sharapova

Sharapova has won 39 WTA titles, including 36 singles and 3 doubles. She also has five Grand Slam singles titles. In 2004, she won the WTA Finals. At 18 years old, she ranked World No. 1 for the first time('05). and has been ranked World No. 1 on five occasions, totaling 21 weeks. Sharapova earned a silver medal in the 2012 Summer Olympics competing in women's singles. She is one of ten women to have achieved a career Grand Slam.