Maria Yuryevna Sharapova born April 19, 1987 is a former World No. 1 Russian professional tennis player. As of July 7, 2008, she is ranked World No. 3. Sharapova has won three Grand Slam singles titles. In 2004, at the age of 17, she won Wimbledon, defeating Serena Williams in the final. She has since won the 2006 US Open, defeating Justine Henin in the final, and the 2008 Australian Open, defeating Ana Ivanovic in the final.