Rodney George "Rod" Laver is a tennis player from Australia who was the World No. 1 player for seven consecutive years, from 1964 to 1970. He is the only tennis player to have twice won all four Grand Slam singles titles in the same year - first as an amateur in 1962 and second as a professional in 1969. He is the only male player during the open era to have won a calendar year Grand Slam. Laver was ranked as the best professional player in the world during the five-year period he was excluded from the Grand Slams.
Only Roy Emerson and Margaret Court had won all four Grand Slam tournaments twice before Laver in the history of tennis. Laver is often regarded as one of the greatest tennis players of all time.
11 titles - Australian Open: 1960, 1962, 1969; French Open: 1962, 1969; Wimbledon: 1961, 1962, 1968, 1969; US Open: 1962, 1969