Stefanie Maria Graf, former World No. 1 women's tennis player from Germany is generally considered to be one of the greatest women's tennis players of all time.
Steffi was introduced to tennis by her father Peter Graf, who taught his three-year-old daughter to swing a wooden racket in the family's living room. She began practicing on a court at the age of four and played in her first tournament at five. She soon began winning junior tournaments with regularity, and in 1982 she won the European Championships 12s and 18s. From then there was no looking back for Steffi.
Graf won 107 singles titles and 11 doubles titles. Her 22 Grand Slam singles titles are second only to Margaret Smith Court, who won 24. Graf won 7 singles titles at Wimbledon, 6 singles titles at the French Open, 5 singles titles at the U.S. Open, and 4 singles titles at the Australian Open. She is the only person to have won at least four singles titles at each Grand Slam event. She was ranked No. 1 for 377 weeks (non-consecutive; overall record), including a record 186 consecutive weeks (from August 1987-March 1991) – the latter record was only recently surpassed by Roger Federer, and is still the outstanding record in the women's game.
In 1988, she became the only player to achieve the "Golden Slam" – capturing all four Grand Slam singles titles and the Olympic gold medal in the same year.
Graf announced her retirement from the tour in August 1999. She was ranked third in the world at the time of her retirement.
With her father dominating her personal life, Graf often declined social invitations and made few friends on tour. Soon after retiring she made headlines off the court for dating Andre Agassi. They married in October 2001 with only their mothers as witnesses. Four days later Steffi gave birth, six weeks prematurely, to their son Jaden Gil (named for Andre's longtime trainer Gil Reyes). Their daughter, Jaz Elle, was born in October 2003.