Maria Yuryevna Sharapova (born April 19, 1987) is a former World No. 1 Russian professional tennis player. Sharapova has won 22 WTA singles titles, 3 WTA doubles titles and 3 Grand Slam singles titles, including 2004 Wimbledon, 2006 US Open and 2008 Australian Open. She was also runner-up at the 2007 Australian Open. She has also won the year-ending Sony Ericsson Championships in 2004. The Women's Tennis Association has ranked her World No. 1 in singles on 4 separate occasions. She regained this ranking for the fourth time on May 19, 2008.