Nicknamed "Fraulein Forehand" for her devastating trademark shot, Graf won more than $21 million in her career.
In 1988, she won all four majors - the Australian, French and US opens, and Wimbledon - and completed a "Golden Slam" with the women's singles title at the Seoul Olympics.
Graf, Margaret Court and Maureen Connolly are the only women to complete the slam.
She won 22 Grand Slam singles titles - second only to Court's 24 - and 107 tournaments on the WTA Tour.
Graf won Wimbledon seven times, the French Open six times, the US Open five times and the Australian Open four times.
She spent a record 377 weeks as the No 1 player in the world, including an unmatched 186 in a row.
Image: Graf at the presentation ceremony of the 2009 French Open.