Steffi Graf Steffi Graf Stefanie Maria "Steffi" Graf (; born 14 June 1969) is a German former professional tennis player. She was ranked world No. 1 and won 22 Grand Slam singles titles. Her 22 singles titles put her second on the list of major wins in the female competition since the introduction of the Open Era in 1968 and is third all-time behind Margaret Court (24) and Serena Williams (23). In 1988, she became the only tennis player to achieve the Golden Slam by winning all four Grand Slam singles titles and the Olympic gold medal in the same calendar year.
Grand Slam (tennis) 2016, Wimbledon have never hosted singles tournament for wheelchairs. Notwithstanding year when the US Open did not take place due to date clashes with the Paralympics. Players who have played all the four Grand Slam tournaments in the same year. Winning singles, doubles and mixed doubles titles at one Grand Slam event is called a Triple Crown. It has become a rare accomplishment in tennis. This is partly because the final match in all three disciplines often takes place concurrently in the same day if not in consecutive days. Doris Hart for example attained her first Triple Crown after playing