Maria Yuryevna Sharapova is a Russian former professional tennis player. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 21 weeks. Sharapova won 36 WTA Tour-level singles titles, including five major titles, as well as the 2004 WTA Tour Championships. She is one of ten women to achieve the career Grand Slam in singles.
A teen sensation, Sharapova broke through to the top of the sport by winning the 2004 Wimbledon Championships as a 17-year-old, upsetting two-time defending champion Serena Williams. She then won the 2004 Tour Finals, and became the world No. 1 for the first time in August 2005 at the age of 18, the first Russian woman to top the singles rankings. Continued success over the following years, including titles at the 2006 US Open and 2008 Australian Open, was accompanied by recurring injuries, and Sharapova dipped in and out of the top 10 around the turn of the decade. After a career-long struggle with success on clay courts, Sharapova claimed the 2012 French Open to complete the career Grand Slam, returning to the No.