Maria Yuryevna Sharapova (Russian: Мария Юрьевна Шарапова born April 19, 1987) is a Russian professional tennis player. As of December 31, 2012 she is ranked World No. 2. A United States resident since 1994, Sharapova has won 27 WTA singles titles, including four Grand Slam singles titles. She has also won the year-end WTA Tour Championships in 2004. The Women's Tennis Association has ranked Sharapova World No. 1 in singles on five separate occasions, for a total of 21 weeks. She became the World No. 1 for the first time on August 22, 2005, and regained the ranking for the fifth time on June 11, 2012. She has been in seven Grand Slam finals with a record of 4–3.