Steffi Graf ( born 14 June 1969) is a former World No. 1 German tennis player. In her heydays there were very few who could match the German on court. In total, Graf won 22 Grand Slam singles titles, second among male and female players only to Margaret Court's 24.[4] Her 22 singles titles mark the record for most Grand Slam wins by a tennis player (male or female) since the introduction of the Open Era in 1968, and is the only player to win at least 4 singles titles at each Grand Slam . In 1988, she became the first and only tennis player (male or female) to achieve the Calendar Year Golden Slam by winning all four Grand Slam singles titles and the Olympic gold medal in the same calendar year.Graf was ranked World No. 1 by the Women's Tennis Association (WTA) for a record 377 total weeks—the longest period for which any player, male or female, has held the number-one ranking since the WTA and the Association of Tennis Professionals began issuing rankings. Thus making her truly one of the games greatest and truly one of the icons of the sport